2020-21 One and One

• G-001 Task-prompt sweep reported hobby release 2021-12-08 for this season, citing cardboardconnection and a beckett listing. Independently confirmed across 4 sources: cardboardconnection ("December 8, 2021"), checklistcenter ("December 8, 2021"), Steel City Collectibles ("12/8/21", UPC 613297971610), and Panini's own blog QC Gallery post (published "December 07, 2021", stating the product "arrives in hobby shops across North America tomorrow" i.e. Dec 8). No conflicting date found anywhere for this season -- unlike the 2019-20 sibling release, the sweep's date checks out here. Used 2021-12-08.
• G-002 Base set size trap (matches the confirmed 2019-20 pattern): cardboardconnection, checklistcenter, and tcdb's stated product total all describe the product as a "180-card" base set. Card-level evidence shows cards 151-180 are a separately-headed "Legends" subset of retired players (Dirk Nowitzki, Magic Johnson, Kareem Abdul-Jabbar, Shaquille O'Neal, etc.), explicitly subheaded "Legends" by both cardboardconnection and checklistcenter, with a matching content break at 100/101 ("Base"->"Rookies", all 2020 draft-class rookies, no post-2020 draftees found) and 150/151 ("Rookies"->"Legends", all retired players). Resolved base_set_size to 150 and recorded Legends as its own insert-type set, per the task's explicit base_set_size-inflation warning.
• G-003 Auto/insert set card counts (Downtown 20, Dual Jersey Autographs 18, Jersey Autographs 18, First-Team Signatures 38, Rookie Autographs 20, Rookie Jersey Autographs 25, Rookie Jersey Autographs Prime 20, Rookie Dual Jersey Autographs 25, Timeless Moments Autographs 29) all have 2-source agreement (cardboardconnection and checklistcenter identical on every count), and Downtown's 20-card checklist is additionally confirmed card-for-card by tcdb. tcdb's own Inserts.cfm listing page names the Prime set "Prime Rookie Jersey Autographs" (word order swapped vs. the other two sources' "Rookie Jersey Autographs Prime") -- treated as the same set, name not fully 3-source-identical.
• G-004 No manufacturer-published numeric pull-rate odds (e.g. "1:X packs" or "1 per case") could be found anywhere for this product/season, consistent with the task prompt's note that Panini publishes no numeric basketball odds. A third-party analytics site (130point.com) publishes derived "cards per case"/"per box" estimates for Downtown, Timeless Moments, 1/1s, and rookie autos, explicitly disclaiming that the figures are "derived from the Panini checklist" via reverse-engineering (not from Panini's own odds statements) and "should not be considered authoritative in any way" -- per the hard rule against inferring odds from print run, these were NOT used to tier anything. The only quantitative box-level statement found ("1 autograph and 1 base, parallel or insert card per box, on average", from Panini's own QC Gallery blog post) is a box-average guarantee, not a pull rate, and per the scarcity-pass hard rules was not tiered. eBay/marketplace listings label individual Downtown cards "Case Hit SSP" -- marketplace copy, not manufacturer odds, refused per spec (mirrors the 2019-20 Downtown precedent). As a result scarcity_sets.csv and scarcity_parallels.csv contain header rows only, and ssp_cards.csv is empty.
• G-005 1 insert/auto set(s) in this release are documented as carrying their own parallel tier, but no source enumerated the colours, so no scoped parallel rows could be created. The tier exists; its members are unknown.
• G-006 1 insert/auto set(s) in this release are documented as carrying their own parallel tier, but no source enumerated the colours, so no scoped parallel rows could be created. The tier exists; its members are unknown.
• G-007 1 insert/auto set(s) in this release are documented as carrying their own parallel tier, but no source enumerated the colours, so no scoped parallel rows could be created. The tier exists; its members are unknown.
• G-008 1 insert/auto set(s) in this release are documented as carrying their own parallel tier, but no source enumerated the colours, so no scoped parallel rows could be created. The tier exists; its members are unknown.
• G-009 1 insert/auto set(s) in this release are documented as carrying their own parallel tier, but no source enumerated the colours, so no scoped parallel rows could be created. The tier exists; its members are unknown.
• G-010 1 insert/auto set(s) in this release are documented as carrying their own parallel tier, but no source enumerated the colours, so no scoped parallel rows could be created. The tier exists; its members are unknown.
• G-011 1 insert/auto set(s) in this release are documented as carrying their own parallel tier, but no source enumerated the colours, so no scoped parallel rows could be created. The tier exists; its members are unknown.
• G-012 1 insert/auto set(s) in this release are documented as carrying their own parallel tier, but no source enumerated the colours, so no scoped parallel rows could be created. The tier exists; its members are unknown.
• G-013 First-Team Signatures is 38 cards per sets.csv; 37 card numbers were written and ONE card was withheld: DWYANE WADE (Miami Heat). tcdb renders his card-number token as the literal string 'NNO' on all three pages checked -- base https://www.tcdb.com/Checklist.cfm/sid/291924/2020-21-Panini-One-and-One---First-Team-Signatures , Black https://www.tcdb.com/Checklist.cfm/sid/291925/2020-21-Panini-One-and-One---First-Team-Signatures-Black and Green https://www.tcdb.com/Checklist.cfm/sid/291928/2020-21-Panini-One-and-One---First-Team-Signatures-Green -- and https://www.tcdb.com/Errors.cfm/sid/291924/2020-21-Panini-One-and-One---First-Team-Signatures explains it verbatim as 'UER: No number on back'. This is GENUINE ABSENCE (the card carries no printed number), not an unresolved value, and it is corroborated negatively by both other sources: an eBay seller free-text title '2020-21 Panini One and One Dwyane Wade First-Team Signatures 2/15 Factory Sealed' https://www.ebay.de/itm/205328877372 carries only the serial /15 and no code, and https://www.cardboardconnection.com/2020-21-panini-one-and-one-basketball-nba-cards renders him as the bare ordinal '40' on a 38-card set (an internal sequence number, not a printed one). 'NNO' is a catalogue convention, not a string printed on the card, so writing it into card_number would not be verbatim; the row is withheld and the player named here. A later pass that adds an explicit unnumbered-card representation should recover this card. The other 37 FTS- codes are unaffected.
• G-014 Set-name variance, logged rather than acted on (sets.csv is never edited by this pass). tcdb names this set '2020-21 Panini One and One - Timeless Moments' (sid 291966, https://www.tcdb.com/Checklist.cfm/sid/291966/2020-21-Panini-One-and-One---Timeless-Moments ) with no 'Autographs' suffix, while sets.csv carries 'Timeless Moments Autographs' (as do cardboardconnection and checklistcenter). Treated as the same set: the tcdb roster is 29 cards, matching sets.csv card_count 29 exactly, all rows carry the TML- autograph prefix, and a fanaticscollect.com free-text listing '2020 Panini One & One Timeless Moments Gold Nikola Jokic AUTO /10 #TML-NJK SCG 8' confirms these are autographs. This mirrors the already-logged G-003 variance where tcdb says 'Prime Rookie Jersey Autographs' for our 'Rookie Jersey Autographs Prime'. Both name variances are tcdb-side, not ours.
• G-015 Source-depth record for this pass, per the requirement to log any card resting on a single tcdb page. SETS RESTING ON ONE tcdb PAGE WITH NO SECOND INDEPENDENT CODE SOURCE: Dual Jersey Autographs (18 rows, sid 291917), Rookie Jersey Autographs Prime (20 rows, sid 291938), Rookie Dual Jersey Autographs (25 rows, sid 291952), and Rookie Autographs (20 rows, sid 291945 -- re-fetched verbatim under a second valid slug which returned the identical 20 codes with strictly sequential ViewCard cids 17645077-17645096, but that is the same sid, not an independent page). Their rosters are corroborated by cardboardconnection and checklistcenter, but their PRINTED CODES rest on tcdb alone. The remaining sets have a second source: Jersey Autographs (goldin.co free-text lot '#JA-TPK Tony Parker'), Timeless Moments Autographs (fanaticscollect.com free-text '#TML-NJK' plus the Black parallel page sid 291967), First-Team Signatures (Black sid 291925 + Green sid 291928), Rookie Jersey Autographs (Blue sid 291961), Downtown (two goldin.co free-text lots naming players at #1 and #4), Legends (cardboardconnection position-for-position plus an eBay seller snippet at #158). PARALLEL-PAGE UNION TEST: run on First-Team Signatures (Black, Green), Rookie Jersey Autographs (Blue) and Timeless Moments Autographs (Black); every tier rendered the IDENTICAL row set as its base page and the union recovered NOTHING -- no placeholder was exposed and no missing card was recovered, matching the 2019-20 result on this line. No tier was more complete than the base page, so no single tier can be called the complete one; base and parallels are exact equals here. SID REGIME: one contiguous block 291910-291972 under parent sid 286583, with NO interior numeric gaps -- https://www.tcdb.com/Inserts.cfm/sid/286583/2020-21-Panini-One-and-One lists all 63 sids consecutively and its arithmetic reconciles exactly (57 insert sids = 1 Downtown + 8 autograph sets x 7 tiers; plus 6 base colour parallel sids). Boundaries probed and confirmed foreign: sid 291909 = '2020-21 Panini Mosaic - Will to Win Mosaic Reactive Yellow' and sid 291973 = '2021 Upper Deck Alien 3 - Harmonious Brotherhood', against a known-live control probe on sid 291916 using the identical slug shape. Unlike 2019-20 (block 252183-252248 with foreign products in its interior gaps), this season's block has no foreign interior. UNCATALOGUED tcdb SUBSETS: none found -- every one of the 63 sids maps to a sets.csv set or its colour tier. PARENT-SID CHECK: the parent header reads 'Total Cards 180' against release.csv base_set_size 150, and the 30-card overshoot IS the Legends set at 151-180, filed inside the parent base checklist with no subset sid of its own and invisible to Inserts.cfm -- the 2019-20 finding reproduced exactly. It was recovered via Checklist.cfm?PageIndex=2 (which paginated cleanly but truncated at card 174) plus Gallery.cfm?PageIndex=18 for cards 175-180. CROSS-SEASON CONTAMINATION AVOIDED: tcdb carries '2023-24 Panini One and One - 2020-21 Panini One and One - First-Team Signatures Green' at sid 481811 and eBay carries a 'Dual Jersey Autographs 2022-23 Panini One and One Update Buddy Hield #DJA-BHE' -- later-season Update cards wearing this season's set names and prefixes. Neither sits under parent 286583 and no row from either was written.

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