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 0x72bb5272af0fc30c4e23e5d5d2eb690e68e98b5c79948523bf469aaab92daa05. 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/adaff7f9-8c7f-48da-88b4-bbaaac80fa18.json and https://artists.proofprofile.net/proofs/artist/adaff7f9-8c7f-48da-88b4-bbaaac80fa18.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 0xbbb760a148cde9e72d04cb84ecdf4f639974f8941648c2aa28fc792319693d57. Chain 2 (Bitcoin): anchored in block 957650 (2026-07-12T04:18:57Z), 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/CAV160500128.
Newfoundland Songbook, Vol. 4 (Folsom Prison / Lukey's Boat)
Newfoundland Songbook, Vol. 6 (Newfie Hits / Be True Newfounlanders)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x265b691af230293029ec5f4d4758615816984bbb2d6ae81c13be3a480c7d6dd1. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/CAU110706965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb367624d15a036e1c2ec20acf06eb5820119e43260275c1f2171adac70cfdb39. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/CAU110706967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae50deb2fcacf3dab37f0d5413236d2a2f9741d12a80fd1c47c9a95e5ec679cb. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/CAU110706971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed1aa5b6ae565057e37cfc9d8fd17e7c4222a15a79be2bafd84570c64e8ebc82. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/CAU110706871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29533c5cf1d67f7348cfe7b7037478e02c00cefb968be80562a25f47a5e6fced. Chain 2 (Bitcoin): anchored in block 957653 (2026-07-12T04:35:02Z), 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/CAU110706877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81ad7f1d4a47939d8348651ec2a6dc7fe542376f48e2ab14abeda2f4cd8e0b3d. 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/CAU110706872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6ab12996695d7ede9be8f5411a688e4ade44745b6f5120e917b8ec77d6acdb0. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/CAU110706878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ad126e99ca543a05a4575a96e44f1b85e89f7b35b1ebdf6a32fa31beae6e650. 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/CAU110706873.
Newfoundland Songbook, Vol. 1: I Walk the Line - Truck Driving Man
Newfoundland Songbook - Movin' Out / I Want to Live, Vol. 3
Atlantic Christmas (feat. Bonnie Lou Nolan)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7abf8159e68a7764c5df59654e5b01816d1983b15f650438c2dc08c5266ec18. 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/USHM91087120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61d12d6ce07433a4797592063fcac3b9ebe9d93e3cb5690177d08d93334d40fc. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USHM91079255.