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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf77ddfa658fc1b3ada399b28eaaa4da71a44097c247f8ff0be1375ec50c380c3. 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/586ec36f-3bdc-459d-a5af-b1eb727012a8.json and https://artists.proofprofile.net/proofs/artist/586ec36f-3bdc-459d-a5af-b1eb727012a8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Your Parents Are Only Marginally Disappointed in Your Musical Taste
Your Parents Are Only Marginally Disappointed in Your Musical Taste! (Instrumental)
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x179a2dc9f8ca576dc787ac26177d90043fab4dcd82fe20812cdc4ee74173e532. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T18:54:29Z), 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/TCADZ1839898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44008a016982c62d9a74869d6c793a75e1c6cddb26107b0aef4dee945c6c4a91. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-22T00:00:17Z), 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/TCADZ1840101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaef884359599ee2c6b6f820860fe6bf76850d2662e22075db354ab7aa2ec09b. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/TCADZ1839905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fbe9dbccb7b67cd18bcaadba68a2b749ade93eedadc0abd6060626282fc5024. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/TCADZ1839909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77f9a0497a3e09b3327fc21cba2ade7b4a68af7a1581f57479ff7824197cb4f7. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/TCADZ1839914.
Invited to the Christmas Party by Mistake
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6ba99fa7dca82c5e594d47205dc8e0d65201f1ec4e8e62ffd44da1b40766b68. 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/QZNWW2093053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c9f73d7fc36770de5c252087de06657f5104e0459c124e70da5bc4a9cc64720. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZNWW2093054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x920c8147ca41f992e28e3fb4d7f797ed819f273ae00411b4a925cb5f161779ce. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/TCAJD2472077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44985e34d7856ee93696525d3a0d55c2f18237e202f0d39dc294ea028336bd38. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/TCAJD2472082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28af205546940ecc08bcfe9ed15c4e552fa4f12c7009804adc932da950d3adaf. 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/TCAJD2472088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cb9582aba43d73b0f570e242def00b6e63237a53748432aa7f496f1640bff41. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T05:04:08Z), 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/TCAJD2472093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14be8a9986c63bc16614e166856dc10bc2874e3d6a459b62f611e31b8f859e40. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/TCAJD2472133.
Big Town Banky Blaine's Rockabilly Bbq ( Instrumental )
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55c3467a36ef12602e5df6dcd7bd5db5a639fb0b94e064793a37aa967d837880. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/TCAJD2472137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c7a4c5ee382356836b57254c459cbcf26eb65bde6f35fa8add5f94b2ffc120b. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/TCAJE2472145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19081b001e8a00d3bc96a66508b76dc735fc10d9c8cbccb04ade30b85572678c. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/TCAJD2472151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b2f40226dd9b0a60723316608830e5641f553fdab4f85d49349eac8a8dead5f. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:29:25Z), 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/TCAJD2472175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa721be8635e79a47eac8a259d78dfe251617cf81cfde6b6c179e37fc4401d2f7. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCAJE2532166.