2019-20 National Treasures

• G-001 Release date sources disagree: checklistcenter.com, dacardworld.com and steelcitycollectibles.com independently agree on 2020-06-12 as the actual hobby release date. An earlier blog.paniniamerica.net preview article ('Must-See First Look') and beckett.com's news article both cited 2020-04-15 as the originally solicited date, which slipped (common for spring 2020 Panini releases amid COVID-19 print/distribution delays). Adopted 2020-06-12 (3 independent retail/box sources) as the actual release date.
• G-002 tcdb.com's set overview page (sid 225917) headers the product 'Total Cards: 160', and its own card-level checklist confirms cards 1-100 are veterans (Stephen Curry, LeBron James, etc., tagged only 'SN99') while cards 101-160 are exclusively 2019 NBA draftees tagged 'AU, MEM, RC, SN99' (101-150) or 'AU, RC, SN99' (151-160) -- i.e. tcdb has folded the Rookie Patch Auto (50 cards) and Rookie Auto (10 cards) autograph subsets into the same running numbering as the true 100-card base set on its overview page. base_set_size adopted as 100 per checklistcenter.com's explicit 'Base Set' heading (cards 1-100) and the page-break in tcdb's own checklist pagination (page 1 ends at card 100, page 2 begins at card 101). The 160 figure is rejected as an editorial/cataloging artifact, not a real base-set size.
• G-003 beckett.com's preview article for 2019-20 National Treasures Basketball names a set 'Colossal Signatures'. No corroborating source was found for a basketball set of that exact name in this product -- web searches for '2019-20 National Treasures basketball Colossal Signatures' returned only football-product results and sold-out/placeholder listings. checklistcenter.com's list instead has 'Colossal Material Autos' as the closest analogous set. Omitted 'Colossal Signatures' from sets.csv as likely an editorial mix-up (possibly reused boilerplate text from the football version of National Treasures, which does carry a 'Colossal Signatures' set) rather than a genuine basketball set name.
• G-004 'Peerless Signatures' existence confirmed via blog.paniniamerica.net's FOTL Product Information Sheet PDF and ebay listings (B.J. Armstrong /25, Tom Chambers #21/99), but no source was found with a card-count checklist or documented full parallel tier for this set. card_count recorded UNKNOWN in sets.csv.
• G-005 checklistcenter.com is the only source found that explicitly lists 'Gold #/10', 'Emerald #/5' and 'Platinum 1/1' as BASE SET parallels specifically (as opposed to identically-named parallel tiers on this product's many autograph/relic insert sets, which were independently corroborated). No second source with a base-card example (card number + parallel name matching a base checklist row) was found for these three -- only Bronze /49 was independently corroborated at the base-card level (Stephen Curry #39). Recorded as source_confidence=single for Gold/Emerald/Platinum in parallels.csv.
• G-006 checklistcenter.com describes an 'NT Blockchain Redemption' digital-card program with '746 cards total with multiple parallel versions'. That combined figure was not adopted as card_count (recorded UNKNOWN) because it plausibly bundles a much smaller base digital checklist together with several parallel-version counts into one number, the same inflation pattern rejected for tcdb's 160-card base-set claim (G-002). No second source was found to disaggregate the true per-tier checklist.
• G-007 checklistcenter.com notes player-specific exceptions to the stated Prime/Super Prime print runs for several relic sets (e.g. 'Biography Materials: Prime #/25 or #/10 (*No Fox)'; 'Colossal Materials: Prime #/25 or Less (*No Harden)'; 'Retro Materials: ... (*No Bradley)'; 'Timeline Materials: ... (*No Capela)'). The underlying reason for each exception and the exact print run that applies to the excluded player's own card were not found in any source. Logged rather than guessed.
• G-008 checklistcenter.com states Rookie Patch Auto Horizontal's base print run as 'Bronze #/49', but an ebay listing for 'Rookie Patch Autographs Cody Martin #131 Horizontal /75 (AU, MEM, RC)' shows /75 for that specific card. It is unclear whether /75 is a different (undocumented) base print run for the Horizontal design, a misprint in the ebay listing, or evidence the Horizontal cards are not uniformly numbered to #/49. Not resolved with available sources.
• G-009 No source consulted for the 1-100 base checklist carried an explicit RC (rookie card) designation for any base card (tcdb.com's card-level notation for base rows 1-100 shows only 'SN99', in contrast to its explicit 'RC' tag on rows 101-160, which belong to the separate Rookie Patch Auto / Rookie Auto subsets). Per the extraction spec, absence of an RC tag is not treated as an explicit 'no' -- rookie_flag is recorded UNKNOWN for all 100 base cards.
• G-010 This release's notes describe base cards or a base subset as serial-numbered, but the figure is only in prose and could not be resolved into structured data. base_print_run is UNKNOWN rather than guessed. Resolving it needs either a base_card_tiers partition for this release or a re-read of the source that stated the run.
• G-011 COUNT DISAGREEMENT: sets.csv records card_count=30 for 'Jersey Treasures'. Two independent sources state 100: checklistcenter.com's product checklist ('Jersey Treasures Set: 100 Cards - Serial Numbered #/99 or as Noted') and tcdb.com's Jersey Treasures subset (https://www.tcdb.com/Checklist.cfm/sid/234405/2019-20-Panini-National-Treasures---Jersey-Treasures, 'Total Cards: 100'). 100 distinct JT- coded cards were extracted and written to insert_cards.csv. The 30 in sets.csv appears to be an ingest error; sets.csv was not modified per the write rules.
• G-012 A set present on both primary sources is absent from sets.csv: checklistcenter.com lists 'NBA Greats Set: 30 Cards - Serial Numbered #/99 or Less' and tcdb.com carries 'NBA Greats Signatures' (sid 234419) with a full Bronze/Emerald/Gold/Platinum parallel tier (sids 234420-234423). No row exists for it in sets.csv, so no insert_cards.csv rows could be written for it (set_name must match sets.csv byte for byte). Needs a sets.csv row added by a pass authorised to write sets.csv, after which its ~30-card checklist is readily sourceable from tcdb.
• G-013 Partially resolves G-004. card_count for 'Peerless Signatures' is now supported by two independent sources at 49: checklistcenter.com ('Peerless Signatures Set: 49 Cards - Serial Numbered as Noted') and tcdb.com (https://www.tcdb.com/Checklist.cfm/sid/234424/2019-20-Panini-National-Treasures---Peerless-Signatures, 'Total Cards: 49'). 48 of the 49 cards were written to insert_cards.csv with printed PS- codes. The 49th (Kevin McHale, Boston Celtics) is shown by tcdb as card number 'TBD' on both the base subset and the Bronze parallel subset (sid 234425) and is tagged EXCH, i.e. an autograph redemption/exchange card -- consistent with no printed number having been catalogued. Not written; not guessed. sets.csv still records UNKNOWN and was not modified.
• G-014 Only 4 of 9 card numbers sourceable. tcdb.com (https://www.tcdb.com/Checklist.cfm/sid/234481/2019-20-Panini-National-Treasures---Treasured-Tags-Autographs) lists 9 rows, of which 4 carry printed TTA- codes (Charles Barkley TTA-CBK, Stephen Curry TTA-SCY, Shaquille O'Neal TTA-SON, Allen Iverson TTA-AIV). The remaining 5 rows -- Kevin Durant, Giannis Antetokounmpo, Karl Malone, Dwyane Wade, Damian Lillard -- show card-number cells of '5', 'TBD', '8', '9' and '10' respectively (confirmed by a narrow verbatim re-fetch quoting each cell). These are tcdb display placeholders, not printed card numbers, and were not written. The set is 1/1 throughout so it has no parallel subset that might carry the full run. ebay/marketplace searches for 'TTA-' titles in this product returned no matching listings. 4 rows written, 5 omitted.
• G-015 29 of a stated 30 cards sourceable. checklistcenter.com states 30 Cards and annotates every parallel of this set '(*No Heinsohn)'. tcdb.com's base subset (sid 234464) lists 29 and its Bronze parallel subset (sid 234465) also lists 29; neither carries Tom Heinsohn. The missing 30th card is therefore identifiable as Tom Heinsohn, but no source found prints its card number (the expected shape would be TTS-<code>, and the codes in this product are demonstrably not derivable from initials). 29 rows written, 1 omitted rather than guessed.
• G-016 Card-number conflict between two sources that both print real codes. tcdb.com prints 'PM-MFK' for Markelle Fultz on both the base Penmanship subset (sid 234429) and the Penmanship Gold subset (sid 234432, quoted verbatim). An ebay.com catalogue title reads '2019-20 Panini National Treasures - Penmanship Markelle Fultz #PM-MKF /49 (AU)'. The two differ by a letter transposition (MFK vs MKF). tcdb's two independent pages were adopted and the row written as PM-MFK; the conflict is unresolved. Note that tcdb itself uses CL-MKF and GG-MKF for Fultz in other sets in this same release and CM-MFZ / JT-MFZ / TM-MFZ in others, so per-set variation in this product is real and the ebay title is not obviously wrong.
• G-017 No card-level checklist found. checklistcenter.com states '746 Cards - Serial Numbered as Noted' for the NT Blockchain Redemption programme but publishes no card-by-card list, and the set does not exist on tcdb.com at all (it is absent from tcdb's full insert-set index for sid 225917). No other source consulted (beckett.com, cardboardconnection.com, sportscardspro.com, ebay listing titles) produced individual card numbers or player names. Zero rows written; the set remains card_count=UNKNOWN per G-006.
• G-018 This release contains prefix collisions and within-set duplicate codes that are genuine and were written verbatim. (a) Prefix reuse across two different sets in the same release: 'RM-' is used by BOTH Retro Materials and Rookie Materials; 'TH-' is used by BOTH Treasures of the Hall Auto and Treasured Threads. (set_name, card_number) is the only safe key for this release. (b) The same printed code carried by two different players inside one set: Clutch Factor Signatures CF-RHM (Richard Hamilton and Rui Hachimura); Penmanship Auto PM-TYG (Thaddeus Young and Trae Young, the latter corroborated by a fanaticscollect.com listing title); Colossal Materials CLM-JCL (John Collins and Jordan Clarkson); Colossal Logoman CL-DRS (D'Angelo Russell and Derrick Rose) and CL-JHD (James Harden and Jrue Holiday); Jersey Treasures JT-JHD (James Harden and Jrue Holiday). All were written as printed and flagged in each row's notes.
• G-019 tcdb.com prints 'LA-RCM' for Richard Hamilton in Logoman Autographs (sid 234411), whereas Richard Hamilton carries a -RHM suffix in every other set in this release (S-RHM, CF-RHM, NA-RHM, TS-RHM, TTS-RHM, LL-RHM, RM-RHM, TTM-RHM, CL-RHM). LA-RCM may be a tcdb data-entry error or may be the genuine printed code. Written verbatim as the source printed it rather than normalised; no second source (marketplace listing) for this 1/1 card was found to adjudicate.
• G-020 release.csv's notes quote blog.paniniamerica.net describing 'full-letter Nameplate patches from Toronto Raptors game-worn NBA Finals jerseys'. tcdb.com's NBA Finals Nameplate checklist (sid 234418, 15 cards, matching sets.csv) is in fact 9 Golden State Warriors subjects (Bogut, Iguodala, McKinnie, Green, Jerebko, Looney, Cook, Curry, Livingston) and 6 Toronto Raptors subjects (VanVleet, Lowry, Leonard, Gasol, Powell, Ibaka). The set therefore covers both 2019 Finals teams, not Toronto alone. The Panini preview text appears to be partial rather than the full description. Recorded rather than used to alter release.csv.
• G-021 COVERAGE HOLE: SIXTEEN PRINTING-PLATE BLOCKS UNDER THIS PARENT ARE ABSENT FROM sets.csv, AND THIS RELEASE HAS NO PRINTING-PLATE ROW AT ALL. Found by the nattreasures-bkb-2018-19 build (2026-09-20), which enumerated this parent's Inserts.cfm (sid 225917) while establishing its own sid boundaries. It reports sixteen blocks whose names begin "2018-19": Flawless Printing Plates (274150-274153), NT Lasting Legacies Printing Plate (259185-259188), NT Peerless Signatures Printing Plate (296301-296304) and NT Colossal Logoman Printing Plates (470702-470705). Verified locally: this release's sets.csv holds 43 rows, none containing "Plate" and none naming 2018-19. Four of the sixteen name sets that nattreasures-bkb-2018-19 does build, so they are prior-season blocks of the kind EXTRACTION_SPEC 5.5 says to list and flag - the convention four Impeccable seasons follow. NOT REPAIRED HERE. Writing them would mean minting sixteen set rows from another agent's enumeration without re-reading the pages, and their card counts were never fetched. RESOLUTION PATH: open each of the sixteen sids, take its Total Cards and rendered row count, and add them as sets.csv rows marked as prior-season blocks. Note the 2018-19 sibling deliberately did NOT write them into its own release either, because they are filed under THIS parent sid and belong to whichever release owns that parent.

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