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 0x4c619f8b3be9c2a595a926e95f67138d864ea403d7f841db1ada84400c06d339. 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/dce888d3-3f7d-4cc4-a1f5-971095041908.json and https://artists.proofprofile.net/proofs/artist/dce888d3-3f7d-4cc4-a1f5-971095041908.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 0xf22ff2b66b2bcce8dd70afd179950c09c6b8ff31618129caac18583696e12565. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/AUGCX1800007.
Out Of The City (To Find Air) - Douglas Dare Rework
Out of The City (To Find Air) - Douglas Dare Rework
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01fe0b6793617cbc2cf3837ce39ff666799d9d2f05a59f708882048d02022c3a. 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/FRR642001218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eda1148d460a633565cbd58432452b15ab57d89527e23f94e9b5c92b1a0ca57. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/FRR642001275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8ad00e0684419baaced35213725806e455a601f54f245591ad438b3353a4d2e. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/FR9W12308251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7c29d421fa9c166876232aa91cf12544e3466983b1fe06e40e77ff83546c8bc. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T20:04:26Z), 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/FR9W12308252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cb0573bea5ffefb487e035b15fbd88261cc967388f65dcbb92837a8bb4f8c32. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/FR9W12308253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e4504077efd1779cf907ffb802eb187e29c481d101b8be965c76c6436d65b3d. 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/FR9W12308255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bbb382f9a2fd6c3f98d6bac89a6fc4b495608ba2bbf717a431ce1e99d82d1e8. 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/FRX871567142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5918c54d03f95f0c6a825bd7edb8f9c04ba963ce12bcae57782417acab35c6bb. 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/FR9W11617197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bbb382f9a2fd6c3f98d6bac89a6fc4b495608ba2bbf717a431ce1e99d82d1e8. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FRX871567142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31ed55764d5661ff416a917e4b04817b75d86fb602eb9cb3d1bb150ec8cc2820. 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/FR9W11603578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bbb382f9a2fd6c3f98d6bac89a6fc4b495608ba2bbf717a431ce1e99d82d1e8. 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/FRX871567142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bbb382f9a2fd6c3f98d6bac89a6fc4b495608ba2bbf717a431ce1e99d82d1e8. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FRX871567142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x405e0df8f793aba45572858d0447588b1102ebed913fe2b483da0948456cd96c. 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/FR10S1869805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bbb382f9a2fd6c3f98d6bac89a6fc4b495608ba2bbf717a431ce1e99d82d1e8. 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/FRX871567142.