Orchestre Symphonique de la Vallée-du-Haut-Saint-Laurent
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x567c98c0b32467679483c410a84122083e988263b7829bb5d2484011c56ff00d. Chain 2 (Bitcoin): anchored in block 954742 (2026-06-21T20:46:40Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fdfedf1d-4cce-43cf-97b0-b33e4c84666a.json and https://artists.proofprofile.net/proofs/artist/fdfedf1d-4cce-43cf-97b0-b33e4c84666a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mes quatre saisons – Printemps (After Jean-Pierre Ferland): I. « Madame Cailloux » (Arr. by Daniel Constantineau)
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb67266a8bc68508ee7687204af706c7baec0354c1572b97fe641139884852d6. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAJ721571501.
Mes quatre saisons – Automne (After Claude Léveillée): I. « Frédéric » (Arr. by Daniel Constantineau)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29188aa928679cb7553b4a9bd05758d1fd1047c17699773bcbec1884f2fa1129. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAJ721571507.
Mes quatre saisons – Automne (After Claude Léveillée): III. « Les vieux pianos » (Arr. by Daniel Constantineau)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59a815f441dd3b5478699f6c02ab7c1ca754e34acd93f7524ff21439ceffeba7. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAJ721571509.
Mes quatre saisons – Hiver (After Gilles Vigneault): II. « Pendant que » (Arr. by Daniel Constantineau)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff77f281dab2b4f25ad12659a6f0dc3e42944744b51b36a7cf8b3862828e6a2d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAJ721571511.
Mes quatre saisons – Hiver (After Gilles Vigneault): III. « Danse à SaintDillon » (Arr. by Daniel Constantineau)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4da420ffd8d3beccd90166ca4a5035d0627c0f2f821d4eb1cc0a8ab45d52a3e0. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAJ721571512.
Les Turluteries, Suite no 1 (After La Bolduc): III. Gavotte (Arr. by Daniel Constantineau and Alexis Basque)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05db67c9765511f9836b62fdcc7a20d1a2217b6870bf940813632fb3cd36c8a3. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAJ721571515.
Les Turluteries, Suite no 1 (After La Bolduc): IV. Bourrée (Arr. by Daniel Constantineau and Alexis Basque)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4077d5c21de1c9a64787c23148ecaa20c38444ff201001457baba5a1416802da. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAJ721571516.
Les Turluteries, Suite no 1 (After La Bolduc): V. Gigue (Arr. by Daniel Constantineau and Alexis Basque)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a92fe6a27f6159f33af8c3043340208844f2712e5676fe7c0cac900c560a11d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAJ721571517.
Les Turluteries, Suite no 2 (After La Bolduc): I. Ouverture (Arr. by Daniel Constantineau)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f336df248f9d137fdb8c4b8fbc4d3a274eb07266682297fc47b8ec1235ca2ca. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAJ721571518.
Mes quatre saisons – Printemps (After Jean-Pierre Ferland): II. « Feignez de dormir » (Arr. by Daniel Constantineau)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbf8c818270458d6e08eac4ff9f9fd7e812214247b460fd099f7aa82aa01df26. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAJ721571502.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Mes quatre saisons – Printemps (After Jean-Pierre Ferland): III. « Fleurs de macadam » (Arr. by Daniel Constantineau)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b9c2cc1635f8a20695866fd7364f8cf1469142b323ea29d40822d756e202123. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAJ721571503.
Mes quatre saisons – Été (After Félix Leclerc): I. « Le petit bonheur » (Arr. by Daniel Constantineau)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x208b53d15bdd626d0a7b1bdaba8f990315316f45955a9656dcb37697b2d78691. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAJ721571504.
Mes quatre saisons – Été (After Félix Leclerc): II. « La mer n'est pas la mer » (Arr. by Daniel Constantineau)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbda9dc9dc1fad9a0d800a6b152d1a7277758d272ed5f82fa4dc393e838f8aa72. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAJ721571505.
Mes quatre saisons – Été (After Félix Leclerc): III" « Le pharmacien » (Arr. by Daniel Constantineau)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20187a5b577ceb3b7db0e7be4a2223483e4c85dd9f820a0219d505ffa408bac4. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAJ721571506.
Mes quatre saisons – Automne (After Claude Léveillée): II. « Et puis la neige vint » (Arr. by Daniel Constantineau)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7de3feeae124f260de6ad6f443dcf291e631bb7128593197863655820d55b4c. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAJ721571508.
Mes quatre saisons – Hiver (After Gilles Vigneault): I. « Mon pays » (Arr. by Daniel Constantineau)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a1e5cd433e558f145254417141a3810b6d82d98f1349bf53b531d312f67607a. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAJ721571510.
Les Turluteries, Suite no 1 (After La Bolduc): I. Ouverture (Arr. by Daniel Constantineau and Alexis Basque)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a113fcb1db65efe20cd5eb4a30a0cab60cac53a2b90d88cc93e498f2a88164f. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAJ721571513.
Les Turluteries, Suite no 1 (After La Bolduc): II. Air (Arr. by Daniel Constantineau and Alexis Basque)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x206aea5115b60a8ce80fa07c1d861aa641d27c268eeca5b0978d2e88ac4f7202. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAJ721571514.
Les Turluteries, Suite no 2 (After La Bolduc): II. Bourrée (Arr. by Daniel Constantineau)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x717a44157dd40d839e576b68de5f1cfd2e582b977939c6527bdb8dbcc436f9a1. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAJ721571519.
Les Turluteries, Suite no 2 (After La Bolduc): III. Gavotte (Arr. by Daniel Constantineau)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b09c772df2e1e98c2c5adc8e43f2de7f4a68dafc12537d85b5f744e6f357176. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAJ721571520.