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 0x93a7766a09f65ed1a5870fa388021e022889de89f110d60740262ba1a080038a. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dcbca40e-09aa-4546-bd63-9c16bbb772a6.json and https://artists.proofprofile.net/proofs/artist/dcbca40e-09aa-4546-bd63-9c16bbb772a6.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 0x452761273dff8ddf8539f8aa7637744f6c4ac4b91ff7ce9bae727b1659c27984. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/SE6QE2287732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8c0719cc81fa376ba3264e5a82089d340100607a9fe16c7d52e34dcba6221a2. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:23:58Z), 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/SE6XX2287344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x219f5c872cf4bdcf644404ab0887f562d912778d51605daba10b8505c6bcb374. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/ART0G2000913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c8fa3d1e5290af3625e9ab4a2141dc5f1738372897a8f155964c82f3d4e2c80. 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/ART0G2000918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xada4e2640250b025ec8b427159f3acc3e6fdb9b9d217ff0e28b06035686d8e56. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:16:12Z), 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/ART0G2000911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aa6bf3c60228762319a0e67f66d0ec3078002ea4e43f5c109cf60d9e83a8bfd. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/SE62M2279430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7bb7aeb63539f91c475b9c665d2bf42539cb55944d2daa2fecfbfd30abafdb7. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/SE5BU2356396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa354d275ffb1e95e6978c6717f673f0eeaebb595706259dfcccd2df214391982. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/SE6SA2324902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x412c9cea00ddc0b26054e400611df13e84bed3e9747afca5c79ba75f3dca2442. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T12:46:36Z), 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/SE6XW2393898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f16fb27915c181f10487f5e9de9438760ee9ac13f9a281a43db38740cbb5f1a. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/SE6QE2413477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bc2e9defabe91a99efb2f293220f9f9a9539ee715e04f03a0fcd0464c0c4424. 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/SE6QE2413478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8122117c0806100f54d0b0e3ff0cb1222a4dbd5ede0c363a9cb4b17d489ef68. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/SE6QE2413479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bd05c7a2fc5b0ce86bdc0572e5e8e8f5fcee00a454988298fc7d8fdb2adb7b4. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/SE6QE2413480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22bf4401d31bc0a5470b5ed67425912e7fc030499ef162b1582d613fb7357472. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/SE6QE2413482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4756bbd70150dbe7522b63096ad0be656af67df0cb75a87e54503d0c2168db64. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/SE5BU2425532.
Mañana Cuando Me Vaya /En Un Vaso De Cerveza
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0adb18454187196d71641b28fa41453c7d7eda2b97faa624f007061a1944da85. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/SE5BU2475899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbbb443f13a2d951f568343cf5bb0c7627ad0e80ca87583437752cb37eacc555. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/SE6SA2464968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x616f21ddc2dd60091dbda73adbb9a957893f9cd20778c5dbba1fdcb2504a9ec2. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/SE6XY2593852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3386bebc4e7d7f8112614dbe55e5a03b9e657a106279e182fe44dc9e324db3d. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:35:10Z), 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/QZNJZ2540204.