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 0x8f078824b4a0a81d7a336895a7315a8fe34ad84d1cb899982c4d670dd13b2fb5. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/640db90f-597d-4c58-94aa-74006f7a0e55.json and https://artists.proofprofile.net/proofs/artist/640db90f-597d-4c58-94aa-74006f7a0e55.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Høybye: Hope. Easter Music: III. Gethsemane
John Høybye: Hope. Easter Music & Psalm 151
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 0x6315244dc3f1ddd279d74d19fbdd687bce731f8505669bf32561479fa5a6f133. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/DEB112304201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcac0f6da138fccb6c9480399616bbc66b3fb08b4c6bfaafe97fd8049822d59c3. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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/DEB112304202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x925535358a6f59bbef54a12969a121e817c8c36c365b1770e193fd86b3523df9. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/DEB112304203.
Hope. Easter Music: IV. The Nails of Death
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70c7e84ccc8a867ca24c39d6b4b66bbff33fd965c047fd1a91d43f07316ae91c. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/DEB112304204.
Hope. Easter Music: V. When God Raised the Dead
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dea317413dcc6f79bc30e38f1bc8a9d408857aca20395ff22dd595e338e674b. 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/DEB112304205.
Hope. Easter Music: VI. The Grave is Empty
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe797b2bac7336c70f925f4de9f7423afd09863ca1fa06a304f5b105d0558a359. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/DEB112304206.
Hope. Easter Music: VII. At Break of Day
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4ffdbde693289f4957fc0bb3e7d569a6b36e70eb5cea76c312725f8076254a3. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/DEB112304207.
Hope. Easter Music: VIII. One Faith, One Hope
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c746945a63712ee7ae25a6ef841c1c5d51e7e8adfd9d4acf2e71af09755ac6b. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/DEB112304208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ce65c44f53534fa3d7871c536eec33982bea8276726791bcf3134df47cf3047. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/DEB111609006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x951d5d7acf53f080e2ceebb894ee9fa7697d77b09adc46f1cc98a4e5159cc71e. Chain 2 (Bitcoin): anchored in block 960456 (2026-07-31T19:53:57Z), 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/DEB111609008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae7062d8ae7d65ece2167386c4f12787a6648851b88ea9581ae1eb7bc02b2bf6. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/DEB111302923.