Sweet Critical 2.0 by 00 Seeds Bank: A Comprehensive Strain Guide - Blog - JointCommerce

Sweet Critical 2.0 by 00 Seeds Bank: A Comprehensive Strain Guide

Maria Morgan Test Written by Maria Morgan Test| April 06, 2026 in Cannabis 101|0 comments

Sweet Critical 2.0 is a modern take on a classic European workhorse, developed by 00 Seeds Bank to emphasize sweetness, yield reliability, and a balanced indica sativa experience. The strain sits comfortably in the hybrid category, typically expressing the compact vigor and dense flowers associat...

Overview of Sweet Critical 2.0

Sweet Critical 2.0 is a modern take on a classic European workhorse, developed by 00 Seeds Bank to emphasize sweetness, yield reliability, and a balanced indica sativa experience. The strain sits comfortably in the hybrid category, typically expressing the compact vigor and dense flowers associated with indica lines alongside the branching energy and head clarity that sativa ancestry can add. Growers and consumers alike turn to it for dependable production and a flavor profile that leans sugary and earthy without losing the skunky punch that Critical-family fans expect.

In practice, Sweet Critical 2.0 aims to refine what made Critical famous across Spain and beyond: fast finishing times, uncomplicated cultivation, and resin-rich colas that trim efficiently. The 2.0 designation signals a breeder-driven update to the original Sweet Critical selection, focusing on consistency from pack to pack and slightly higher aromatics. While phenotypic variation exists as with any seed line, most reports describe a uniform structure, manageable stretch, and buds that retain their nose even after a careful cure. These attributes make the cultivar versatile across indoor, greenhouse, and favorable outdoor climates.

Aromatically, Sweet Critical 2.0 lands in the sweet earthy spectrum with a persistent undertone of skunk and spice. This is consistent with widely published profiles of the broader Critical family, which is often characterized by pungent earth and sweet notes alongside a deeply relaxing effect curve. The result is a cultivar that can satisfy legacy Critical enthusiasts while offering a polished, dessert-leaning twist for newer palates.

History and Breeding Background

To understand Sweet Critical 2.0, it helps to revisit the arc of Critical itself. Critical descends from the same gene pool that produced Critical Mass, a renowned selection that combined Afghani structure and Skunk lineage into a high-yield hybrid popularized across Europe in the late 1990s and early 2000s. Spanish breeders embraced these genetics because they could finish quickly and produce large, dense inflorescences that did not demand exotic feeding regimes. Over the next decade, Critical spawned numerous offshoots, each trying to refine flavor, resin quality, and ease of cultivation.

00 Seeds Bank entered this landscape with Sweet Critical, a selection geared toward enhancing the sugary side of Critical without sacrificing yield. The 2.0 iteration represents a breeder refresh built around stability, improving uniformity across phenotypes, and subtly elevating the terpene intensity. While release dates vary by market, Sweet Critical 2.0 emerged as part of a broader wave of second-generation updates that many European houses rolled out in the mid to late 2010s. The consistent theme is a fine-tuned expression with slightly higher desirability for both hobbyists and small commercial rooms.

Market adoption has been steady because the line addresses practical grower concerns. It tends to finish on time, structure into manageable canopies, and deliver resin coverage adequate for both flower and simple mechanical extraction. In a landscape where long-flowering dessert hybrids can push beyond 10 weeks, Sweet Critical 2.0 usually maintains a shorter window, reducing energy costs and risk. This history situates it as a trustworthy, yield-friendly staple with a sweeter twist.

Genetic Lineage and Heritage

The lineage traces to an indica sativa blend derived from Afghani and Skunk families, the same broad heritage that defines most Critical lines. While 00 Seeds Bank has not published a granular parent-by-parent pedigree, the phenotypic signals are unmistakable: broad-leaf vigor, pronounced apical colas, and skunky-sweet aromatics. This is in line with Critical’s historical template, where Afghani brings resin density and structure and Skunk contributes branching, aroma, and a more uplifting initial headspace.

In terms of likely trait donors, Afghani influence shows in the thick calyxes and the way buds stack into hard spears with a high calyx-to-leaf ratio. Skunk ancestry typically manifests as the sugar-sweet top note riding atop earth and musk, plus a branching habit that responds to topping and low-stress training. Because Sweet Critical 2.0 was selected as an update, breeders focused on minimizing the outlier phenotypes that stretch too far or express thin, airy flowers. The result is a predictable hybrid that tolerates diverse training styles and produces uniform indoor canopies.

Practical implications of this heritage are meaningful for both growers and consumers. Growers can anticipate a medium stature with efficient internode spacing that fills a screen or stakes nicely. Consumers can expect a balanced effect curve with a clear onset that gradually shifts toward body ease, consistent with Afghani-derived relaxing properties and Skunk’s initial buoyancy. Together, these traits explain why Sweet Critical 2.0 can satisfy evening unwind sessions without fully eliminating mental clarity at modest doses.

Visual Appearance and Plant Morphology

Sweet Critical 2.0 typically presents dense, golf-ball to spear-shaped flowers with a lime to forest-green hue and vibrant orange to copper pistils. The trichome coverage is abundant, creating a frosted finish that becomes more pronounced as the cure progresses. Calyxes tend to swell visibly in the last 10 to 14 days of flowering, improving bag appeal and trimming speed. Under strong LED lighting, some phenotypes show faint lavender tints late in bloom due to temperature shifts, but deep purples are not the norm.

Plants exhibit medium internode spacing and a prominent central cola if left untrained. Indica-forward leaf blades dominate in vegetative growth, with wide, dark-green fans that lighten slightly when nutrient levels are optimized. Average indoor height ranges from 80 to 120 centimeters in a 4 to 6 week vegetative period, while outdoor plants can reach 180 to 250 centimeters in favorable, sunny climates. The structure supports a sea-of-green approach with many smaller plants or a screen-of-green with fewer, more extensively trained bushes.

The canopy architecture lends itself to defoliation for airflow, especially from week 2 to week 4 of flower. Side branches thicken quickly, and nodes can form stacked flower sites that push out lateral buds suitable for top-shelf trimming. With appropriate support, colas harden into compact spears that resist foxtailing unless subjected to prolonged heat stress. The cultivar’s high calyx density means it benefits from careful humidity control near harvest to reduce botrytis risk.

Aroma and Bouquet

The nose on Sweet Critical 2.0 is immediately sweet, often compared to sugar-coated nuts, light caramel, or candied citrus peel over a base of damp soil and wood. This aligns with the Critical family’s reputation for pungent earthiness balanced by a sugary top note documented across consumer reports. Skunky sulfur compounds contribute a faint funk that rounds out the sweetness without overpowering it. As flowers cure, a gentle spice reminiscent of pepper and clove can appear, pointing to caryophyllene and humulene activity.

Grinding a properly cured sample increases the sweetness and can unlock a creamy, nougat-like nuance in some phenotypes. The broken flower aroma also reveals a faint lemon-lime effervescence consistent with limonene and possibly terpinolene fractions if present. In sealed jars, the bouquet is persistent and tends to perfume the container within hours. For terpene preservation, a slow dry and stable cure at moderate humidity enhance the confectionery character and keep the skunk-wood backbone intact.

Compared to contemporary dessert strains that can smell overtly like candy, Sweet Critical 2.0 stays anchored by its classic earthen core. That makes it approachable for consumers who want sweetness without an overwhelming synthetic candy nose. The overall intensity rates as medium-high, with cured jars easily noticeable when opened in a small room. This aromatic balance is one reason it doubles well as both a personal stash and a crowd-pleasing share.

Flavor and Combustion Character

On the palate, Sweet Critical 2.0 delivers a sugar-forward inhale with a quick transition to breaded earth, light pepper, and skunk. The initial hit can recall honeyed biscuit or light toffee, a character that deepens as the bowl or joint progresses. Citrus zest flashes appear in some phenotypes, particularly under vaporization at 175 to 190 degrees Celsius. Exhales often carry a soft, woody spice followed by a lingering sweetness on the lips.

Combustion quality is typically smooth when flowers are properly flushed and cured. White to light-gray ash and an even burn signal a dialed-in dry and cure, helping preserve volatile monoterpenes. Under high-temperature dabs of solventless rosin from this cultivar, expect a heavier push toward skunk-spice with a sugared finish, as heat can diminish the light citrus confection. In vaporization formats, the session evolves from sweet citrus to earthy spice as temperature rises through the spectrum.

The strain pairs naturally with beverages that echo or contrast its sweet-earth axis. Herbal teas, lightly sweetened coffee, or a citrus seltzer complement the flavor arc without drowning it. Savory snacks with mild salt content can enhance the lingering sweetness perceived on the palate. Overall, the flavor is balanced enough for repeated sessions without palate fatigue.

Cannabinoid Profile and Potency Metrics

While laboratory data specific to Sweet Critical 2.0 vary by grow and region, most Critical-derived cultivars cluster in the mid to high teens and low 20s for THC. A reasonable expectation for well-grown Sweet Critical 2.0 flower is 16 to 22 percent THC, with occasional phenotypes or optimized grows testing up to approximately 24 percent. CBD tends to remain low, often under 0.5 percent, placing this line firmly in the THC-dominant category. Minor cannabinoids like CBG frequently show in the 0.2 to 0.9 percent range, contributing subtly to body ease.

These figures align with documented ranges across the Critical family, which is widely described as potent enough for evening relaxation without the extreme intensity of elite indoor-only powerhouses. It is instructive to note that derivative or crossed lines, such as Critical x Gorilla Glue autoflower hybrids, are often reported at 20 to 30 percent THC under optimal conditions; Sweet Critical 2.0 itself does not consistently target that peak range. The delta between mid-tier and elite potency in practice often reflects environmental dialing, cannabinoid measurement method, and harvest timing. As always, numbers are only one part of the experience, and terpene synergy plays a significant role in perceived strength.

In concentrates, THCa percentages can rise proportionally due to resin consolidation, with solventless rosin fractions commonly exceeding 60 percent total cannabinoids from high-grade starting material. For edibles, decarboxylation efficiency and infusion methods will mediate potency expression more than the cultivar’s baseline content. Consumers sensitive to THC should start low due to the relaxing, sometimes sedative nature of the Critical effect curve. Experienced users will find the potency ample for unwinding and sleep support at higher doses.

Terpene Profile and Functional Chemistry

The dominant terpenes in Sweet Critical 2.0 typically include myrcene, beta-caryophyllene, and limonene, with supportive roles from humulene and linalool. Field and lab reports across Critical-type cultivars commonly show total terpene content between 1.5 and 3.0 percent by dry weight under optimal drying and curing. Within that, myrcene often lands around 0.4 to 0.9 percent, caryophyllene 0.2 to 0.6 percent, and limonene 0.2 to 0.5 percent, though individual batches vary. These ranges produce the layered sweet-earth-spice bouquet that defines the line.

Beta-caryophyllene is notable for its unique capacity to bind to CB2 receptors, potentially contributing to perceived anti-inflammatory effects in synergy with THC. Myrcene is traditionally associated with sedative, body-weighted effects, consistent with the evening-friendly profile reported by many Critical users. Limonene contributes mood elevation and brightens the nose with subtle citrus. Humulene and linalool can add hoppy wood and floral calm, respectively, rounding the experience.

Occasionally, farnesene appears in trace to low-moderate amounts, an increasingly documented terpene with green-apple, pear skin, and herbal nuances. Farnesene has drawn grower interest due to its distinctive aroma and its potential role in modulating the overall sensory profile in late flower. Its presence in some modern selections has been highlighted by breeders and educational outlets that profile terpene effects. In Sweet Critical 2.0, if present, it usually supports the sweet top line rather than dominating it.

Experiential Effects and User Reports

The effect arc begins with a quick-onset head lift and mood brightening in the first 5 to 10 minutes after inhalation. This front-end clarity often transitions into a warm body calm as the cannabinoids and terpenes synergize, reducing physical tension and mental noise. Within 45 to 90 minutes, the body ease can become heavier, making couches, music, or a movie feel inviting. The overall duration for smoked or vaped flower commonly spans 2 to 4 hours depending on dose and individual tolerance.

Consumers familiar with Critical family strains often note a sedative, relaxing tail that makes this cultivar well suited for late afternoon or evening. Reports frequently mention appetite stimulation, a mild softening of short-term stress perception, and a reduction in ruminative thought patterns. On the downside, excessive intake can lead to couchlock or early sleep, which may be undesirable during daytime obligations. Those prone to dry mouth or red eyes should keep water and eye drops on hand, as these common side effects present with moderate frequency.

At moderate doses, the strain can support social relaxation or low-stakes creative tasks that do not demand rapid recall. Music appreciation and tactile hobbies like cooking or sketching often pair well with the sweet, grounding feel. High doses skew strongly toward sedation and sleep, a hallmark many seek from Critical-type cultivars. As with any THC-forward flower, a cautious titration approach is recommended for new users.

Potential Medical Applications

Given its effect profile, Sweet Critical 2.0 may be relevant for managing transient insomnia and sleep-onset difficulties. The combination of myrcene-led body calm and THC-driven sedation at higher doses can help shorten sleep latency for some users. Individuals with episodic stress or tension may find short-term relief, as many report a reduction in somatic anxiety signals. Appetite stimulation can benefit those experiencing diminished hunger due to acute stress or medication side effects.

Pain modulation is a common reason patients seek Critical-type genetics, particularly for musculoskeletal discomfort after physical activity. The modest presence of beta-caryophyllene, which interacts with CB2 receptors, might complement THC’s analgesic action, though controlled studies are still evolving. Users also report relief from menstrual discomfort and tension headaches with careful dosing. Importantly, as a THC-dominant strain, it may not be ideal for those sensitive to THC-induced anxiety, especially at high doses.

As always, medical outcomes depend on individual physiology, dosage, and delivery method. Vaporization can offer a quicker titration and fewer respiratory irritants than combustion, while edibles may provide longer-lasting relief but carry a delayed onset and stronger psychoactivity. Patients should consult medical professionals familiar with cannabinoid therapy and consider starting with low doses to gauge response. Tracking personal outcomes in a journal can help optimize timing and dose for targeted relief.

Comprehensive Cultivation Guide: From Seed to Harvest

Sweet Critical 2.0 is built for straightforward cultivation, appealing to first-time growers and veterans who value predictable performance. Germination is typically rapid at 24 to 26 degrees Celsius with a light starter feed around 200 to 300 ppm and a pH of 5.8 to 6.2 in soilless media. Seedlings establish quickly and show strong apical dominance by week two, making them easy to top above the fourth to sixth node. Veg growth of 3 to 5 weeks is sufficient for most indoor rooms to fill a screen or a compact canopy.

Target environmental parameters include day temperatures of 24 to 28 degrees Celsius with nights at 18 to 22 degrees, and a VPD that ranges from 0.8 to 1.2 kPa in veg. In coco or hydro, maintain EC around 1.2 to 1.6 in veg and 1.6 to 2.0 in early flower, backing down slightly after week 6 as ripening begins. Soil growers can simplify with dry amendments, but the cultivar appreciates steady calcium and magnesium once strong LED intensity is applied. Maintain pH at 6.2 to 6.8 in soil and 5.8 to 6.2 in coco or hydro to keep micronutrients available.

Flowering typically completes in 49 to 56 days indoors for most phenotypes, though individual plants can run a bit longer under cooler conditions. Outdoors, plan for a late September to early October harvest window at temperate latitudes, with earlier finishes in hot, arid regions. Compared to many trendy purple or dessert cultivars that can demand 9 to 11 weeks, this shorter window reduces energy draw and risk of late-season weather damage. The dense flower set rewards consistent airflow and RH control to prevent mold pressure.

Nutrition needs are moderate to moderately heavy but less finicky than heavy-feeding OG or Cookies lines. Nitrogen should be tapered as early flower sets, and phosphorus plus potassium support should ramp up from weeks 3 to 6. Supplementing silica can strengthen branch structure to carry dense colas, and beneficial microbes in living soil can smooth nutrient uptake. Avoid overfeeding late in bloom to preserve sweetness and prevent bitter ash after combustion.

Indoor Cultivation Parameters and Training

Indoors, Sweet Critical 2.0 thrives under high-efficiency LED fixtures delivering 700 to 1000 micromoles per square meter per second in flower, with CO2 enrichment up to 1000 to 1200 ppm if the room is sealed. Under enriched CO2 conditions, yields can improve by 10 to 20 percent when temperature and humidity are adjusted upward appropriately. A plant density of 6 to 9 plants per square meter in a sea-of-green or 2 to 4 plants in a screen-of-green can both succeed. The former maximizes speed, while the latter optimizes top-shelf nug size and uniformity.

Training strategies are versatile. Topping once or twice in veg produces a bushier structure that responds well to low-stress training to maintain an even canopy. Selective defoliation in week 2 and week 4 of flower improves light penetration and reduces humidity pockets inside the canopy. Stakes or trellis netting prevent cola flop, which can otherwise increase mold susceptibility.

Irrigation frequency in coco or rockwool should maintain slight dry-backs to encourage oxygen exchange while preventing salt buildup. Runoff EC tracking helps keep the feed balanced as flower density increases. Aim for 55 to 60 percent RH early in flower, tapering to 45 to 50 percent in the final two weeks to harden buds and discourage botrytis. With LEDs, consider supplemental far-red or UV-A in the final weeks to encourage secondary metabolite production, observing plant response carefully.

Outdoor and Greenhouse Strategies

Outdoors, the cultivar prefers full-sun exposures with at least 6 to 8 hours of direct light and well-draining soil rich in organic matter. In-ground mounds or 50 to 100 liter fabric pots provide sufficient root volume to support 1.8 to 2.5 meter plants in favorable climates. Pruning to 8 to 12 main tops and removing lower interior growth increases airflow and simplifies late-season inspections. Mulch helps stabilize soil moisture and reduce irrigation frequency during heat waves.

Greenhouses extend the season and offer protection from early autumn rains, which is valuable given the strain’s dense colas. Deploy horizontal fans and roll-up sides to maintain airflow and reduce humidity spikes at dusk and dawn. If mid to late flowering storms are frequent in your region, consider light-dep timing to harvest before the wettest weeks. Regular scouting for caterpillars, which can open infection points within compact flowers, is critical in outdoor and greenhouse contexts.

Nutritionally, living soil systems with slow-release amendments are well suited to Sweet Critical 2.0’s steady appetite. A top-dress at pre-flower with phosphorus, potassium, and trace elements, plus a light follow-up around week 4 of bloom, typically suffices. Foliar IPM rotations with biologicals in early veg, ending before flower set, can reduce pest load without compromising resin. Outdoor RH targets are more difficult to control; spacing and strategic defoliation become the main defenses against bud rot.

Harvest Timing, Drying, and Curing

Harvest timing should be guided by both pistil maturity and trichome color under magnification. For a balanced effect, many growers target mostly cloudy trichomes with 5 to 10 percent amber; for more sedative results, 10 to 20 percent amber can deepen the body effect. Calyx swelling in the final two weeks is pronounced in this cultivar, and patience during that window is often rewarded with a measurable weight and resin bump. Avoid pushing beyond optimal maturity if humidity is hard to control, as the risk of botrytis increases.

Drying parameters strongly influence the final aroma and smoothness. Aim for 10 to 14 days at 18 to 20 degrees Celsius and 55 to 60 percent RH with gentle, continuous airflow that does not directly hit the flowers. Faster, hotter dries can volatilize monoterpenes; studies across cured cannabis suggest significant monoterpene loss when drying at elevated temperatures, with reductions in the first week being the most dramatic. A slower, cooler dry helps preserve the sweet top notes that define Sweet Critical 2.0.

Curing should proceed in airtight containers burped daily for the first 7 to 10 days, then weekly for 2 to 6 weeks as moisture equalizes. Stable storage at 58 to 62 percent RH using humidity control packs can protect both terpenes and potency. Properly cured flower maintains a sticky resin feel, a pliable snap on small stems, and a loud sweet-earth nose that grows richer over the first month. Many users report the flavor peaks between weeks 4 and 8 of cure for this cultivar.

Yield Benchmarks and Performance Data

Yield is a central reason growers select Sweet Critical 2.0. In optimized indoor conditions under 600 to 1000 watt-equivalent LED lighting, 450 to 600 grams per square meter is a realistic target, with dialed-in, CO2-enriched rooms occasionally surpassing 600 g m2. Per-plant yields in a screen-of-green strategy commonly land between 80 and 200 grams of dried flower depending on veg time, pot size, and training. Sea-of-green deployments with many small plants can yield efficiently as well, sacrificing individual plant size for speed.

Outdoors, single-plant yields vary widely with climate and root volume, but 400 to 800 grams per plant are achievable in 50 to 100 liter pots in sunny regions. In-ground, well-amended mounds can exceed those numbers, especially when irrigation, IPM, and canopy management are disciplined. Greenhouse light-dep programs that pull two cycles per season can match or exceed outdoor single-harvest totals by reducing late-season risk. As with any strain, published maximums often reflect near-ideal conditions; independent grow reviews commonly echo that results depend heavily on grower skill and environment.

Grams per watt efficiency tends to range from 0.8 to 1.6 in soil and coco systems with modern LEDs. Factors pushing the upper bound include optimal VPD control, uniform PPFD distribution, adequate trellising, and disciplined defoliation. Note that sensational yield claims should be interpreted in light of variables like plant count, CO2, and veg duration. Practical growers focus on consistency and quality; Sweet Critical 2.0 offers a strong balance of both.

Troubleshooting, Pests, and Disease Management

The most significant cultivation risk with Sweet Critical 2.0 is bud rot due to its dense, compact colas. Prevention starts with canopy planning, judicious defoliation, robust horizontal airflow, and humidity tapering in late flower. Maintain RH at or below 50 percent in the final weeks and avoid watering late in the light cycle to reduce overnight moisture spikes. Promptly remove any affected buds if rot appears to prevent spread.

Nutritionally, watch for calcium and magnesium demands under high-intensity LEDs. Interveinal chlorosis or rust spotting can indicate a need for Cal-Mag supplementation or a pH adjustment to improve uptake. Nitrogen toxicity is rare but can occur if veg feeding is aggressive; overly dark, clawing leaves suggest a reduction is needed. Late flower overfeeding can mute sweetness, so taper nutrients appropriately during ripening.

Common pests include spider mites, thrips, and caterpillars in outdoor or greenhouse contexts. Implement a preventative IPM program in veg with periodic applications of biologicals, predatory mites, or botanical soaps, ceasing before early flower to protect resin. Maintain clean intakes, sticky traps, and quarantine procedures for new clones, even if growing from seed. Environmental cleanliness and staff routines are a crucial line of defense in any scale of operation.

Post-Harvest Storage and Quality Preservation

Terpenes are volatile, and improper storage will flatten the very sweetness that defines this cultivar. After curing, keep jars in a cool, dark place around 16 to 20 degrees Celsius and 55 to 62 percent RH. Avoid prolonged exposure to air and light; both accelerate terpene oxidation and cannabinoid degradation. Research on cured cannabis indicates that monoterpenes can decline markedly within weeks under warm conditions, so temperature discipline pays dividends.

If storing for more than three months, consider vacuum-insulated containers or inert-gas flushing to slow oxidative loss. For dispensary or caregiver settings, rotating stock first-in-first-out and tracking package dates helps maintain flavor fidelity. Freezing is best reserved for fresh-frozen extraction inputs rather than cured flower, as freeze-thaw cycles can rupture trichome heads and degrade smoking quality. Properly stored Sweet Critical 2.0 maintains a vivid, sweet-earth nose and satisfying smoothness for months.

Positioning Within the Critical Family and Market

Within the Critical umbrella, Sweet Critical 2.0 emphasizes a confectionary angle and stable, predictable production. Compared to standard Critical selections often described as pungent, earthy, and sedative, Sweet Critical 2.0 tilts a few degrees sweeter while preserving the grounding effect. This makes it a bridge for consumers intrigued by modern dessert aromas but who still prefer the classic European hybrid feel. It also complements longer-finishing, fruit-forward cultivars by offering a quicker turn without sacrificing bag appeal.

From a grower’s perspective, Sweet Critical 2.0 competes favorably on grams per day of flower time, a useful metric in rooms where energy cost and cycle timing matter. While some fashionable purple or candy strains run 9 to 11 weeks in flower, this cultivar’s typical 7 to 8-week finish can improve annual throughput. Relative to ultra-high-potency crosses that can exceed 25 to 30 percent THC under perfect conditions, Sweet Critical 2.0 focuses on all-around usability. That positioning keeps it relevant for both personal grow tents and small commercial operations seeking consistency and a broad consumer appeal.

In short, Sweet Critical 2.0 holds its own as a reliable, sweet-leaning, Critical-type hybrid. Its strengths are ease, speed, and flavor balance rather than chasing extreme potency or exotic coloration. For many growers and consumers, that combination is precisely why Critical genetics have remained staples for decades. Sweet Critical 2.0 continues that tradition with a polished, modern touch.

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