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 0xece48c65b01031fda81054a61bd1e56e8c5b312701e7367e649128bbd8e4b4a9. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/96f3b40d-d2a5-4383-a8e6-0ab5692eaea5.json and https://artists.proofprofile.net/proofs/artist/96f3b40d-d2a5-4383-a8e6-0ab5692eaea5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Melhor Se Acostumar (Tour-Maubourg Remix)
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 0xf8509e85afe8d82bf76e25eabf7af819e901e3a8ae81da782e2b236ceddcbd26. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FR9Z62300654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x180b68f496025abb70fd37ea8166fa5569d222716134a4956c1e756dc5892d9d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FR9Z62300655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4af4a528aa6b74e42f1cb2768c4671790da7bacea7f151561d2672e9d1e574b1. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FR9Z62300656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x180b68f496025abb70fd37ea8166fa5569d222716134a4956c1e756dc5892d9d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FR9Z62300655.
Melhor Se Acostumar - Tour-Maubourg Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b5c55fb30c8e920b56e7e9a047e8ba221e9fbed3a0cabfb48c1621838f9c35f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FR9Z62300657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8509e85afe8d82bf76e25eabf7af819e901e3a8ae81da782e2b236ceddcbd26. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FR9Z62300654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4af4a528aa6b74e42f1cb2768c4671790da7bacea7f151561d2672e9d1e574b1. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FR9Z62300656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1e3e2822107b199efd0efb51424e0c08f1bf1a452c2ce027c2a9fc787ebea65. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FR9Z62300653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65b64521cbc1ce6207b20921d6d7a10ef2c2484cf8837e325b2bbbf0eab24d98. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/CH8092302260.