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 0x11dfb0f80292af941916c5fdcc1c77582a6f351df45bbd9fc40d847775c7a2f6. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7c8b1dcd-4396-4cf8-882b-034a6c37ce9e.json and https://artists.proofprofile.net/proofs/artist/7c8b1dcd-4396-4cf8-882b-034a6c37ce9e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x5da5b863f9572b21cbf6f5251731b75f39d180593a9f58b43322ec3c2d8997d8. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:35:29Z), 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/QM6MZ1949686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7e7adeadf3ee6b69bb677b20d2d8ed4e17072ef1d4ff06c089470819e233e75. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/QM6MZ1949688.
Je ne partirai pas, je n’irai nulle part
Je ne partirai pas, je n'irai nulle part - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefce98363c20f9382372ca5a5e552a0179da08320342b8a1d1375f2d25855c9f. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FR3DN1300500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbccdcc6877ed402c398eb06c1894a65693dcd5394a55e1cee00c206565098f0. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/FRD4X2400030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbccdcc6877ed402c398eb06c1894a65693dcd5394a55e1cee00c206565098f0. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/FRD4X2400030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d3e42cafbddcbeca9e1a05afbc8312b3cedd7e58053f8baab4b9fe27073c1c5. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/FRD4X2400040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa280706525733c52b49a010db15fe18438623e7601b3541fd5e8da4d9f84757c. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/FRD4X2400050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40f7704c0361eec992f9bb814df680a5b13a7030dec16fbe0bd63bb76872d38a. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/FRD4X2400060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ed1c7d73cc7ead4304cca0fe7e9d2726d190ebed1414f3789f1d75e2fc6b4f1. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/FRD4X2400070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bbbf2295cb5346e985067f6b5691248a2edafa041d76c3341ed6e44bda9a22a. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FRD4X2400090.