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 0x8643e53230b76d30923e8cf45b614da7050f2b54b90b2c80b09b7cd0c37a1a23. Chain 2 (Bitcoin): anchored in block 953783 (2026-06-15T12:24:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d590eeb8-a6b2-4cbe-a864-ea99dddf5f77.json and https://artists.proofprofile.net/proofs/artist/d590eeb8-a6b2-4cbe-a864-ea99dddf5f77.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Tamlin Reel - The Humours Of Tulla (Reels)
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 0x1ec45766971a69065f61cd67b9fd3028ed14711ae4ff76c31caee1b0aae43f6c. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:48:51Z), 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/USX9P1042142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5011964549fe3ddf590dd3a0eac90cef7f51e316d7f27e62757128a17aa8aff2. 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/USX9P1042148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc174ca9ae5ce5874f925866516215bd044e6229e4d33dda70043016ef026c715. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/USHM81442873.
Dancing Bear Set: Lads of Laois / Eileen Curran / The Reconciliation
Sporting Paddy (Live at the Dayton Celtic Festival)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb56b2a0a38cbb8e95587f678d4863ea7f1067ef7da16b2d478872b935405ac7. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USHM92456605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dbcdd179344964ea0fbb3617b3aed0322544806f161374dc7479c3dfe1e1153. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USHM92456616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe36df576a16bd14dbc0b110e0ef7d46036ef4625aa8fabbe907ba2d629fa3d6a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USHM92456617.
Renee the Love of My Life / Waking up in Wonderful Wark / Seville Suite
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x156d59fc26f62f75754e5116cae5ed3b57d42029d2be10be257ae9a317c3c43b. 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/USHM92456607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e9ca94897e907e94d8476bdc76995d1abf1996db6171e60f557a277fb29be9d. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USHM92456608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe466b2bddbc90e5bb4095d9e2b15ea2e03c36d6c3cb7338b1deda876e13dd5e7. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USHM92456621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1848330f7e2a202ed501a4a928e10616966644a4b797cf00e034112ddbcc3549. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USHM92456612.
Ashes of Love (Porch Sessions Demo) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70f6805d69f4c7bcb9bbf290d6e41b69f3d7377010bd9eb4ecc08582f4786535. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USHM92456623.
Donegal Danny (Live at the Dublin Irish Festival)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0015c99d35a86e04e88f7f7b22373b72d66aa9b47352b2dd58108d1cb48845fa. 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/USHM92456606.
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
Barn Burner Mayhem (Live at the Dublin Irish Festival)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe189ae1dfed7f531824087023f73df33bb4d0c2d891c30aa9b991e372c03cbc8. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/USHM92456619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2c178de9ea3c6791006cf06b8a1f6f3fb7c953925db3b90cfdacf1b30adbd95. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/USHM92456609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x894f59397a7443ed3d4f556994c0ec3f26b17e66bc063cfbb9614b7fb8790992. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/USHM92456610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x232e0209320ebf2a127fa8ae0fb680161bf2f19106c90e3665237cc53247e765. Chain 2 (Bitcoin): anchored in block 960352 (2026-07-31T05:48:30Z), 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/USHM92456611.
Welcome Poor Paddy Home (Live at the Dublin Irish Festival)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x689834cd10000dad3cfb597a847269b3d5dc1efc91144ce06a579f064d6e4670. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/USHM92456614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a3b6e90b25b16d9d6d056db29a9941c7fb35713913be425d3869679b2ea5190. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/USHM92456615.