{"canonical_id_v02":"89fcc561ef07","identity":{"artist":"Dan Mumford","game":"mtg","grade":"raw","image_url":"https://cards.scryfall.io/normal/front/4/0/40e3bf00-84cc-498c-b214-1052b4904d92.jpg?1783909424","locale":"en","name":"Island","number":"273","rarity":"common","series_slug":"duskmourn-house-of-horror","set_name":"Duskmourn: House of Horror","set_slug":"duskmourn-house-of-horror","vintage":"modern_rotation"},"meta":{"build_inputs_sha":"dd33b3c6ef9b37c9","confidence_tier":"T1_sales_derived","generated_at_utc":"2026-08-30T16:37:28Z","methodology_version":"v0.7","schema_version":"0.2.0"},"narrative":null,"price":{"bid_ask_spread_pct":null,"by_printing":{"Foil":{"buylist":null,"fetched_at_utc":"2026-08-29T00:00:00Z","listed_median":null,"market_price":0.53},"Normal":{"buylist":null,"fetched_at_utc":"2026-08-29T00:00:00Z","listed_median":null,"market_price":0.51}},"cohort_relative_zscore":null,"fetched_at_utc":"2026-08-29T00:00:00Z","latest_buylist":null,"latest_listed_median":null,"latest_market_price":0.53,"primary_printing":"Foil","primary_printing_in_record":"Foil","primary_printing_resolution":"exact"},"similar_cards":[],"structure":{"_methodology_version":"v0.7","_source_breakdown":{"tcgcsv_archive":97,"tcgcsv_forward":1425},"as_of_date":"2026-08-29","ath_date":"2024-09-11","ath_price":4.28,"atl_date":"2024-12-09","atl_price":0.21,"canonical_id_v02":"89fcc561ef07","canonical_id_v03":null,"canonical_id_v1":null,"climatology_baseline_pct":{"CALM":38,"DRAWDOWN":23,"HEATED":39},"cohort_label":"mtg-en-raw-modern_rotation","cohort_source":"derived","current_off_ath_pct":-87.62,"current_price":0.53,"history_first_date":"2024-07-22","history_last_date":"2026-08-29","history_n_obs":1522,"history_n_obs_series":764,"liquidity_tier":"T2","notable_moments":[{"date":"2024-12-10","delta_pct":47.6,"label":"+48% day-over-day","price":0.31,"type":"outlier_spike"},{"date":"2024-12-09","delta_pct":-95.1,"label":"-95% off peak","price":0.21,"type":"drawdown_low"},{"date":"2024-10-22","delta_pct":39.3,"label":"+39% day-over-day","price":0.39,"type":"outlier_spike"},{"date":"2024-10-05","delta_pct":33.3,"label":"+33% day-over-day","price":0.48,"type":"outlier_spike"},{"date":"2024-10-02","delta_pct":-32.8,"label":"-33% day-over-day","price":0.45,"type":"outlier_spike"},{"date":"2024-10-01","delta_pct":67.5,"label":"+68% day-over-day","price":0.67,"type":"outlier_spike"},{"date":"2024-09-22","delta_pct":-60.6,"label":"-61% day-over-day","price":0.41,"type":"outlier_spike"},{"date":"2024-09-21","delta_pct":-54,"label":"-54% day-over-day","price":1.04,"type":"outlier_spike"}],"position_in_own_range_pctile":83,"regime_entered_date":"2026-08-08","regime_label":"HEATED","regime_occupancy_pct_1y":{"CALM":11,"DRAWDOWN":2,"HEATED":87},"regime_occupancy_pct_lifetime":{"CALM":11,"DRAWDOWN":1,"HEATED":88},"regime_run_length_days":21,"regime_transitions":[{"date":"2024-09-12","from":"CALM","to":"HEATED"},{"date":"2026-06-23","from":"HEATED","to":"CALM"},{"date":"2026-07-10","from":"CALM","to":"DRAWDOWN"},{"date":"2026-07-16","from":"DRAWDOWN","to":"CALM"},{"date":"2026-08-08","from":"CALM","to":"HEATED"}],"residual_vs_cohort_14d_pct":3.92,"residual_vs_cohort_30d_pct":15.22,"residual_vs_cohort_90d_pct":8.47,"series_printing":"Foil","series_printing_determinacy":{"decided_by":"total_tiebreak","margin":0,"n_candidates":2,"pool":"recent","tie_members":["Foil","Normal"]}},"trajectory":{"return_1y_pct":15.22,"return_30d_pct":15.22,"return_7d_pct":-11.67,"return_90d_pct":32.5,"series_30d":[{"date":"2026-07-30","price":0.46},{"date":"2026-07-31","price":0.46},{"date":"2026-08-01","price":0.49},{"date":"2026-08-02","price":0.47},{"date":"2026-08-03","price":0.46},{"date":"2026-08-04","price":0.47},{"date":"2026-08-05","price":0.47},{"date":"2026-08-06","price":0.48},{"date":"2026-08-07","price":0.49},{"date":"2026-08-08","price":0.51},{"date":"2026-08-09","price":0.5},{"date":"2026-08-10","price":0.52},{"date":"2026-08-11","price":0.53},{"date":"2026-08-12","price":0.54},{"date":"2026-08-13","price":0.54},{"date":"2026-08-14","price":0.53},{"date":"2026-08-15","price":0.5},{"date":"2026-08-16","price":0.5},{"date":"2026-08-17","price":0.51},{"date":"2026-08-18","price":0.53},{"date":"2026-08-19","price":0.49},{"date":"2026-08-20","price":0.54},{"date":"2026-08-21","price":0.54},{"date":"2026-08-22","price":0.6},{"date":"2026-08-23","price":0.6},{"date":"2026-08-24","price":0.6},{"date":"2026-08-25","price":0.6},{"date":"2026-08-26","price":0.61},{"date":"2026-08-27","price":0.56},{"date":"2026-08-28","price":0.56},{"date":"2026-08-29","price":0.53}],"series_90d_thinned":[{"date":"2026-05-31","price":0.4},{"date":"2026-06-02","price":0.41},{"date":"2026-06-04","price":0.41},{"date":"2026-06-06","price":0.41},{"date":"2026-06-08","price":0.42},{"date":"2026-06-10","price":0.46},{"date":"2026-06-12","price":0.46},{"date":"2026-06-14","price":0.47},{"date":"2026-06-16","price":0.48},{"date":"2026-06-18","price":0.45},{"date":"2026-06-20","price":0.45},{"date":"2026-06-22","price":0.45},{"date":"2026-06-24","price":0.45},{"date":"2026-06-26","price":0.45},{"date":"2026-06-28","price":0.43},{"date":"2026-06-30","price":0.43},{"date":"2026-07-02","price":0.42},{"date":"2026-07-04","price":0.42},{"date":"2026-07-06","price":0.41},{"date":"2026-07-08","price":0.42},{"date":"2026-07-10","price":0.42},{"date":"2026-07-12","price":0.43},{"date":"2026-07-14","price":0.43},{"date":"2026-07-16","price":0.46},{"date":"2026-07-18","price":0.45},{"date":"2026-07-20","price":0.46},{"date":"2026-07-22","price":0.46},{"date":"2026-07-24","price":0.46},{"date":"2026-07-26","price":0.47},{"date":"2026-07-28","price":0.46},{"date":"2026-07-30","price":0.46},{"date":"2026-08-01","price":0.49},{"date":"2026-08-03","price":0.46},{"date":"2026-08-05","price":0.47},{"date":"2026-08-07","price":0.49},{"date":"2026-08-09","price":0.5},{"date":"2026-08-11","price":0.53},{"date":"2026-08-13","price":0.54},{"date":"2026-08-15","price":0.5},{"date":"2026-08-17","price":0.51},{"date":"2026-08-19","price":0.49},{"date":"2026-08-21","price":0.54},{"date":"2026-08-23","price":0.6},{"date":"2026-08-25","price":0.6},{"date":"2026-08-27","price":0.56},{"date":"2026-08-29","price":0.53}],"series_key":"557259|Foil","series_printing":"Foil"},"vendor_links":{"cardmarket_url":null,"ebay_search_url":"https://www.ebay.com/sch/i.html?_nkw=Island%20Duskmourn%3A%20House%20of%20Horror&mkcid=1&mkrid=711-53200-19255-0&campid=5339074870&toolid=10001","pokemontcg_url":null,"scryfall_url":"https://scryfall.com/search?q=Island","tcgplayer_url":"https://www.tcgplayer.com/search/all/product?q=Island%20Duskmourn%3A%20House%20of%20Horror&partner=7060428&utm_campaign=affiliate&utm_medium=tcgvibes&utm_source=tcgvibes"},"_handle":{"canonical_id":"89fcc561ef07","game":"mtg","html":"https://tcgvibes.com/cards/89fcc561ef07","methodology":"https://tcgvibes.com/methodology","witness_chain":"https://tcgvibes-witness.jjk91525.workers.dev/chain/latest","build_shard":"cards/mtg/builds/dd33b3c6ef9b37c9/89.json","provenance_fields":["price.fetched_at_utc","price.latest_market_price","price.primary_printing","meta.build_inputs_sha","meta.methodology_version","meta.schema_version","meta.confidence_tier","meta.generated_at_utc"],"reading":"`provenance_fields` lists the provenance keys THIS record actually carries, derived from it rather than written down: the price.* entries name the OBSERVATION, the meta.* entries identify the BUILD and the RULE that derived it. The witness chain carries the per-day envelope with its own code_commit and prev_hash. Every field here is served verbatim from the build shard — this block points, it never restates."}}