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 0xc1d64bde96570d7b7a0efe1ba262c39acd0e1e8dd277a59b01673bfbd13e4811. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/10936b72-7fbd-4773-af3c-5c74d2736e04.json and https://artists.proofprofile.net/proofs/artist/10936b72-7fbd-4773-af3c-5c74d2736e04.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
George Frederick Handel Excerpts from MESSIAH
Messiah, HWV 56 / Pt. 1: 1. Accompagnato: Comfort ye, My people
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 0xa99f056e78aecfb25fbeaf64ed9aaa2f6d000a6ebf4da36212b33a244cc24f32. 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/GBF076141702.
Handel: Messiah (Adrian Boult – The Decca Legacy II, Vol. 2)
My Heart's in the Highlands (Remastered 2014)
Kenneth McKellar - The Greatest Scottish Tenor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac6145b29c35ba0067740fbb951f8ee5d9836710ef76c7a67329d81e98de88fe. 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/AUXN22329591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92bc24786ec76842834eb891e05a74fd61d753a87d93979c58a3e8b48a273e33. 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/AUXN22329592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91d3e1a2ceaf9cd770738d384aff95bc7b3f2d88f45f91168dc07defeb754356. 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/AUXN22329596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcab5dd69e9bbb2c02e64d3cbd8a3a1af0e2ce9e4dc67974feec1d9f5403c6326. 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/AUXN22329597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf426f7e1c742bb12efc39e24edc72ec22fcbf989982ed0f34830035698a70cf. 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/AUXN22329600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ffdf6d1b3d3e8761263cd64b3be89c6218279a11ae67d6a8e887aa3fe7eb1a7. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/AUXN22329589.
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 0x196765ac8e5fd82cb41612d838defb74e918fadf22b7b8cc5f8ebb2d11033072. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/AUXN22329590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7af981a053482c0282bbb06e1a8127d65b9d7cae3dc3f0ee5c9a9de10f4217c. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/AUXN22329593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc107a9bb5fab1a0e5ddef530260f8eb2b443db71bd591eae7bb45b1a7d6bf47. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/AUXN22329594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bf9b4093c434a41873c68dc2b32fc045ef8e47c91f5052d1f01c48ef3cc812e. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/AUXN22329595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfabd0c4ef8b186c8d3ffc972cdb46e3a521a1095f9c1a53f90b2d0426bc0dceb. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/AUXN22329598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62285b04520e87983907a77a4e5fe347d756570ecbfa5593d3b5c870480f3084. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/AUXN22329601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4029d7f87fab319303db87ca1917f01c6ca5bf7a76de24ff56fed390380c53b. 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/AUXN22329606.
Handel, J.S.Bach, Clarke, Britten (Adrian Boult – The Decca Legacy II, Vol. 4)
Two of a Kind: Sir Harry Lauder & Kenneth McKellar
Two of a Kind: Kenneth McKellar & Calum Kennedy
Kenneth McKellar Sings the Songs of Robert Burns
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7168ba873e563b596361302418bdb6ec633f405e9237a72e692a736818148ebb. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBGQH1922161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc18a338aa0a26466728ccfbfa9b2af30e3b5f42c7844df75b0b0bcac3f4ab3d. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/GBGQH1922136.
My Love Is Like a Red Red Rose (Remastered)
Macushla - Celtic Songs from Kenneth McKellar
My Heart's In the Highlands : Kenneth McKellar Sings Robert Burns
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1b84cad463b3f99ef23f6ae6a29dad459b3fe8a6cd70efdfe77ae4d5a85fe18. 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/QM6N21720089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26eb996d95a3902a9912e2fd004ff9eaab831c6d90fc381e84363a5bc7609463. 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/GBELT1204181.
The Songs of Robert Burns (Digitally Remastered)
The Songs of Ireland / Sings the Songs of John Mccormack
Kenneth McKellar Sings the Songs of John McCormack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82abafc2a236e9acc68a14dbbf5bc88c851ed70978dc9a04932f563efe0f3c54. 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/GBPQM1000249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x893dd2074b3ea46378ce6f55c8dc6c69658dd5ae4d9ce253b30eb0520078f769. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBPQM1000226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54cd34fffba5ce06e89482ebdf5d2dd63a8d064d6eb692217339491cc6723239. 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/GBPQM1000332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c2f149d92019d2d310c80898c7d766cffee36a03587e1d3da3cabcd0b6e7b00. 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/GBPQM1000336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb8e19eed5e99367885942b75573a3208fc20606327c26fcc94cce23151c6869. 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/GBAHX0200132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01ce070d4984fff8f85924831dae705fd0de00742d12c14173c505476cf0aa60. 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/GBF075922160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e3a2ec4c54982a460647dd23ff0fd035d840ac396bec460589ce7b60b07a859. 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/GBF076201690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e8101e4a2de33f08c7003321316ef6b63843aff725bb160b394443fa12d46e0. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/GBF077421560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a4bad872dde8f58439dc686649450036bf75b5f08b5122dce9e7772bfc96687. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/GBBBA5860730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18b3b34419b8f377c371a41b87f8b08eba8dc5fdff5cfced0b49f82720cb8468. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/GBF077022670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9fae28256003c3f8593e04984df7c8689fd0a00093be7b7d71c9de59dc81b4c. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/GBF075600760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01d1debbdb15393a34c251efb65e20b6c429f19d3c3abb469c0b9f17028fb856. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/GBF076723200.