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 0x2c2f5254dc7c73e2b6fa78d131f6d718f0b780146a8f8cec4f2e44d1e7a65cbd. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6039ea13-9ac9-4301-b291-cb596e52ddce.json and https://artists.proofprofile.net/proofs/artist/6039ea13-9ac9-4301-b291-cb596e52ddce.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Un garçon ordinaire (D'après le roman de Joseph d'Anvers)
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 0x3453c26805961a430c15f2c59652cdcc515e58d75cf477ebfb9a32704f84328c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FRX202441633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c741d713d485137432e1b2343c0fe95017bf0ab27c9a135b08a8c6fc1cae4d1. 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/FRX202441634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd36a384f34310260b2f9d402608f9ff6a80d819977c53b34af05498267641579. 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/FRX202441635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0676cfec2d63c0b300aab16424269197a7db1adef241a2716e66ddf119b2b96. 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/FRX202441636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58d70a9cee795e21690f87311fe2468fc23315db14cbdec4024e9bed41434ad4. 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/FRX202441638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5f5d04c1787b86bbdcfb49eeaf1aef4a25a375adda385461a4b75618295927a. 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/FRX202441640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1113b4b4ae2620c8124fd738341d5ba819c433b31479349c295b040e07192c4a. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/FRX202441637.
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
Le parfum sucré des fragrances pour adolescentes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc60d15f74ad203df01b707d81b780319a1a7f6e54b6203531a9c88a3f90a069. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/FRX202441639.
JELLYFISH (Bande originale de la pièce de théâtre)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a4a833c9540d516a3668a0256b826e4c5f1aef28ab2f3fa7554603d343b87f2. 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/FR9W12029519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8b198b5c1e44de5183634016f797cdd8e56acebb66219434d7881cb98689590. 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/FR9W12029521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ddfb9893e68cea7908afb81f40acc3418aec922d0b9cc17c264e31ff0b29540. 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/FR9W12029522.
Amis Imaginaires (Bande originale du cinéconcert)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b65c4f39c9ddacc9101d25fdaa6db37a8afe719e7f3da87bf6d25262190005b. 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/TCAEW2046479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc599c833b556e86300e4c598552c225a86b70f2d4facff4bbd1426f6f5ee5948. 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/FR6T11000250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf929522556706f9846cff9f589b2415f87e51bb571734aec2c3c016d4ab619e. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/FR6T11000290.
Doppelgänger 4 tracks demos piano voix (Enregistré Live au studio ferber)