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 0xcd2695a7271f787a186657ff8c97d18158ddd84ac7823e7946155f243af923b6. 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/c7ed250a-c4a3-4be6-9f3d-fe943b92d27e.json and https://artists.proofprofile.net/proofs/artist/c7ed250a-c4a3-4be6-9f3d-fe943b92d27e.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 0x0a770083fc5f69faa671455121e917dc3a7eb73b233159571dfd7968af4b1be7. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEUJ61800155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7625017f1a3b5745754651f79958a8efab54167b59c3a4c0599aab50bad156ab. 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/DEUJ61800156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d28b7220f2f936c5b0920f6c90cc284c61e7f10c96cd2d87288d66565ee4d63. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEUJ61800157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7398793f1ef68159c3d3dae1b37d5cbeb80a2f163a7f033f691a91984389e5c. 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/DEUJ61800158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x848fe481be982ac7974d086e5a67b94158c702a29b890ec0211d03607e0e073b. 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/DEUJ61800159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79342b6e503235b88d571631f171820a1e6158673a89875cbd92aed07668d2cb. 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/DEUJ61800160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd840b47265fadcc48878b7c7af0566886bc739242dc5b14a5b461413e9d075b7. 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/DEUJ61800161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b96f59dbc2e4eea8d39200a7aec9a09a4b29d320ee53495db45130675e8537a. 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/DEUJ61800162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfd267b09f5365e8a8da1e08e83ad24ae7848abf5e87f966807d986ac66596a5. 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/DEUJ61800163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31e1cb7a77b4ea4e6bf502b4a656e0ea1e587e4d9dff0d8f9944d8ec7ee2219b. 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/DEUJ61800165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77903990efd63ec1b2b9ff501b4958635d32ca5dea99226bf29851cc776ba070. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:11:27Z), 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/DEUJ61800164.
Freedom Is Not Negotiable - Symphonic Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd93e7eadd1407dc97d14405bfd9a4bbe8e748f86c6c59e60dfb90509a4ae58b4. 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/DEUJ61900143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe423a8f68d53e4f1caeeae6aa6c1e977f144b5df7f05d9170857d729fd048b3. 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/DEUJ61900146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff7dadcea0e732534d361aebee435f6cd684a66d2f81110fdee8727af40bad5b. 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/DEUJ61900148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3882a62273359d9d3e1d04dc63a0bcbb72053615164e5bde2295e6ffff8d2776. 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/DEUJ61900149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa485bea078ec0ceb7a6d760078249782e2ea2fcc6da7812beacb3f7bfd94c75b. 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/USCGJ1193849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd200a6d006fb5aaa7049650fb65bb5a9c94e8917e56535731e982c98d2052d7. 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/USCGJ1193850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdc01bc86757f95dbcbc64d5a429a0d960c3a6a9b1b26b0e17de3b59284fc599. 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/USCGJ1193851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x763d2f248016521f58d898a4e6174b0976cbc53f58b57c90ae81b251ed577dcc. 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/USCGJ1193855.
Last Stand (Orchestral Version) [Bonus Track]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe533d08306849cd92573a9b8360ee1fc6b444247ee94c5a718a63e16adc6eb62. 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/USCGJ1193861.
The First Noel (Heavy Metal Version)[Bonus Track]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55db8b24f20cf681401fcf7dc73d2b16c73765667f9c290784d56598fa8a47ed. 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/USCGJ1193864.
Happy Birthday (Heavy Metal Version) [Bonus Track]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb91cd1633007bad24fa3d8a7a3d5133d7f1863b868041f0d124caf1fdd7e0e68. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USCGJ1193865.
A Lot to Be Done by Christmas (Heavy Metal Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x438da72d48dc7b3db10245fd1aa3923e513f5a9038cfee4dea47945f4b7b21b8. 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/USX9P2333191.
All I Want for Christmas Is You (Heavy Metal Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ce444e06b5f68e79935243a95f1d901f46d75cb6c22e76adad6185da89a0455. 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/USL4R2161895.
Little Drummer Boy (Symphonic Metal Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe78e88f74c426c4ac8dd4a5e83f90961d02cbbbff5427b11c56995342f2f5a3. 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/USL4R1918169.
Joy to the World (Symphonic Heavy Metal Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd840b47265fadcc48878b7c7af0566886bc739242dc5b14a5b461413e9d075b7. 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/DEUJ61800161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7398793f1ef68159c3d3dae1b37d5cbeb80a2f163a7f033f691a91984389e5c. 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/DEUJ61800158.
Santa Claus Is Coming to Town (Symphonic Heavy Metal Version)
Thunderstruck (Symphonic Heavy Metal Version)
Jingle Bells (Heavy Metal Version) [feat. Minniva]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x990f756d1d360caa92b7ce0adbd93056aad4a73493589b7d058fcb7cd2bdcd94. 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/USHM81553991.
Für Elise (For Elise) [Symphonic Metal Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc87d0197a90dfa74a8e2139b7fbb6c88853fe7976abfbb3373ffb6171321d32f. 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/USCGH1563077.
Carol of the Bells (Symphonic Heavy Metal Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19ff3a47aa81ed44fcacaca220ec8ac156d678e1c4cac5bc5c3640c39556a84c. 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/USX9P1431442.
Rudolph the Red Nosed Reindeer (Heavy Metal Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0f2ce502e868067506b2b288d914faa3df5297dff1915c20f5f98dd1236f908. 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/USX9P1414699.
We Wish You a Merry Christmas (Heavy Metal Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac3c8d56b42a7cb8cda2d90ea4346d0f3a64ad9dda96b813dfb04bf4c7a25b01. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/USX9P1231555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26787737a837a0ac55497fd2c70b6dc1b11165615bb7e6ff3eee90eabc005c9f. 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/NOCWZ1804455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa47024102c4579dea69b56b5bd28d32afc61c43d2e875d6e56d5c27e35e96bae. 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/GB5EA1604830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3950a9527417cd74c7693fd87103256561c9c9f70976ecef7d82070939856e30. Chain 2 (Bitcoin): anchored in block 957244 (2026-07-09T01:44:02Z), 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/QMFMF2119901.