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 0x46e6c82f77d05b6e875e303d8f7eaead5e0a447e2ac2b2f1167248fbb18b182d. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c4e250e2-9f12-419c-a20b-f2aca9eb41f5.json and https://artists.proofprofile.net/proofs/artist/c4e250e2-9f12-419c-a20b-f2aca9eb41f5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Les Grandes Eaux de Versailles (Musiques des fêtes royales)
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 0x64e7217d2de36e9eac8f92457b5bbf3caa6edc5bb9f0df5c02dda2c0c537c45e. 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/FR9W11828933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4302720b8c6abb0bc18e79f6762e6441d6c5c468e0e2619ca15b2874a1c8256. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FR9W11824543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4104a2807adc14651425bcd5043814fcadf7849cbd8e57164eabb08b0a82d485. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FR9W11829330.
Messe du Roi Soleil: Lully, Couperin & Delalande
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64e7217d2de36e9eac8f92457b5bbf3caa6edc5bb9f0df5c02dda2c0c537c45e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FR9W11828933.
Exaltabo te Domine, S.66: VIII. Audivit Dominus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabc258e3bea6f490dbe5a969c0d5724597e80897c2c3e88c0efefa803cb05d82. 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/FR9W11828942.
Charpentier: Missa Assumpta est Maria, H. 11: XVII. Et in Spiritum sanctum
Missa Assumpta est Maria, H. 11: XVII. Et in Spiritum sanctum
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x719b28889475cdad61ae73aa73478762aab225c1872b224a8b98f4827e63a8ce. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FXR522415017.
Missa Assumpta est Maria, H. 11: VI. Et in terra pax
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2496a9e0658f15279f49380a514eeda6c4ba422de6ef80c4b048bc6358fcee32. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FXR522415006.
Missa Assumpta est Maria, H. 11: XII. Et incarnatus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5cd1e15d4b7e93d7af4d59c05ccb67da0ae2862657af2b365425018968ecf76. 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/FXR522415012.
Missa Assumpta est Maria, H. 11: XVI. Cujus regni non erit finis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a04630963eb4506c41e7cbd3cb734cba2490265bafbff7a0ea6ae661f431a0f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FXR522415016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x719b28889475cdad61ae73aa73478762aab225c1872b224a8b98f4827e63a8ce. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FXR522415017.
Missa Assumpta est Maria, H. 11: XX. Sanctus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd782078a1cc14fb3abc39905a17503eaf665de3dcc32acc6309e71e8fa479ada. 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/FXR522415022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0270074eb1bc45e0b8369bd95901615e25dfc6ceaa9f11f44a9a3edf532c41e. 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/FXR522415023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b57b01ef6d954b6d05a5d4bc7ab27eab571984e85502dab87e5e8bae9d8a4f9. 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/FXR522415027.
Motet pour une longue offrande, H. 434: II. Paravit Dominus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c7ad4fae0c96202068d8473d5da424a9c3b3720189ac769b73d0fa333d67fbc. 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/FXR522415029.
Motet pour une longue offrande, H. 434: IV. Pluet super peccatores
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb2c17dd4735ef03495a8607b84a03376d5ec9ccb57c7a1a0a865070389db2b9. 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/FXR522415031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe86324840d21821b7022fa134d25edb98b79f8b94b6aefbd55a6e83fb155b6db. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FXR522310201.
David & Jonathas, H. 490, Act II: Ouverture
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e8dd3ce43f0304e3cf141a47b8ea29c3ff3c17f12efe0bda3ced795345a240b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FXR522310219.
David & Jonathas, H. 490, Act II Scene 1: Quel inutile soin (Joabel)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34b9fb2c8a88fb74030e45eec5e993545c429fb7475e87e96e13f437261cdb85. 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/FXR522310220.
David & Jonathas, H. 490, Act II Scene 2: Dépit jaloux, haine cruelle (Joabel)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61ae790340ecac69807674239825c31398a0f422a231efc82070b58366e7e7b4. 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/FXR522310222.
In Exitu Israel: II. Mare Vidit, Et Fugit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce83fa4bc5ab133c0edce8d26843bc938e77158ed3c9ec48d4fc78ab85e6f211. 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/FR9W12205430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5984300a67adc90a4d4bba13c6b0948dadd1509576480f56223c857c91fe2b41. 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/FR9W12205433.
In Exitu Israel: VIII. Non Mortui Laudabunt Te Domine
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x807e5f3d248121c68e22db2ad51f45737bc8ac8325a705d2d1607c401ba4c529. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FR9W12205436.
Dominus Regnavit: IV. Elevaverunt Flumina
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41e24412a47da15c6d79333021cbb3d14aafd9612ab7ae48d081d13ca5ca9ef3. 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/FR9W12205440.
Mozart: Bastien et Bastienne - Pergolèse: La Servante Maîtresse
Haendel: Organ Concertos, Salve Regina & Saeviat tellus
Le Grand Jeu. French Baroque Organ Favourites