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 0xccd38e5be681bddbe635db93e45e542d8d26be4193650c51491c0519f5f2c5e6. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9c321e21-27e6-46c4-868b-0614496c2073.json and https://artists.proofprofile.net/proofs/artist/9c321e21-27e6-46c4-868b-0614496c2073.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 0x59f032cea20478d8cba3efe836512490de6421b01b4b139b16756f626d231f2b. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/DED831900408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd86f28f1da9f7bd7059cecd50b5135a54c78e64a4f344bcb080e5896537aa487. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:24:29Z), 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/DED831900409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29a48536c88571639dd73dc6dff696fdfd77f97338434bcad11170f6986d2555. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/DED831900410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8844398f76035fa3674cacd3dcec480f57993bc7b4c41fd459da1d70ecafae1. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/DED831900412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x680d3a0c24c280afd834bc8ddb49c93bd35442937b794c715732466a2acca380. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/DED831900413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47d5d6476b54b33f1e23c9849a28e5709335a32f515edf7bc4c2c36054e64408. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/DED831900414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08576eabb75c3240b2f40d10560640e767d820203bf302a24f13130de680925d. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/DED831900415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85a6cbab9fb0883fb43044dbe69729d1c310e8d5b62243dfd0ff59ac3ced73c2. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/DED831900416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcb26f08156b937f37acb87710fdbc9191b0a0841e174c4c726a6721857c3103. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/DEYO62000201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e2c4014ac5dcfcae43304d95b57eb97b90625e2579fa7b60c9ca68643b4ad16. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-19T22:59:45Z), 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/DEYO62000235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87fe95e796e684db22e550f64f68d4cc85d669ffe371a65c0f12b84fabeb06b6. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/DEYO62000233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x217f0175ec57dbff312a83153ddcf2717eadd778065c3f1bd8323e97cd459cbb. 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/DEYO62000232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd3f9f54050e95bcd2f25559ac53d365633ca7899c9aa6ec99c96427e752cb53. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DEYO62000234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e2c4014ac5dcfcae43304d95b57eb97b90625e2579fa7b60c9ca68643b4ad16. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/DEYO62000235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3999ad1225105e368467343f32d81a794aec2e647c7087f0bad1729365a411f2. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:58:15Z), 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/DEYO62000236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa960c2650ade8d6120576fc1a37912122866d3f7d024af986baba249953f5de1. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/DEYO62000237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fb1fe2d24b1431b49281b8a6699863bf7af80a155bcf0170ea3fd9914ab9297. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/DEYO62000238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5f4f32b1fe024cc694bdebe9b0cdac61fbf7d20b6a3883f87cab3dbf0f86b7c. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/DEYO62000239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e02019c17419d16e7d2fe7278983d72c6c945ea8362236cde8b09be4cabcc44. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/DEYO62000240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3895e83c020a50cdb36667f383544ba858e53e5126335b57b56fcfc59ad216ec. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/DEYO62000241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67f76522dc33bc51771e57f6758c5434a7f956079963c771408f2cc4eb37bee2. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/DEYO62000242.
Ballad of the Headless Horseman - Orchestral Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e5468d655b06edef5a7ea0f0edbe3bdcca4545a669dd121a721cac724622022. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/DEYO62000243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31997746c3a5285e8d3ba2470ad48fac1b8f4118a75bf7d4aabfd1fa77d8c885. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/DEYO62100108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b6b6b83ba533fd098a3db7e15c958f093c9a76e67df0037e529d3d597463981. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/DEU602310729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5533bcdf2f417d00bb502deb19bbd5e4f75e28beefc3d8ba9ee4bafa831fd607. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T04:34:55Z), 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/DEU602310786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f56aa7ad9e685ab056ae3a22244f2f9cb8378f2532ec7ff1ab6a56846687c48. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/DEU602310908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee6825f12ba0cac8a0052922dd054bf37511dd64614fb287e380a23e73adff21. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/DEU602410954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bc2fa5287ba04eb4070d7813afd93d752e24a7abfc7c54c676a420fe1e2beec. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/DEU602410958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc90cfa8d8a1501145c0640d6a5e1fd59b188965c4936455e0100f41bad27284. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T04:31:43Z), 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/DEU602410959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2489bf10008c2cb9dcbe4dd60de2393aa366188264baa4192844b1343603490b. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/DEU602410957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bc2fa5287ba04eb4070d7813afd93d752e24a7abfc7c54c676a420fe1e2beec. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:41:37Z), 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/DEU602410958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f56aa7ad9e685ab056ae3a22244f2f9cb8378f2532ec7ff1ab6a56846687c48. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/DEU602310908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc90cfa8d8a1501145c0640d6a5e1fd59b188965c4936455e0100f41bad27284. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/DEU602410959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fcc2b2c8b0a3a74a093023c9dbeb0e1b1dfb37a799272b0012e974e33441883. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:47:33Z), 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/DEU602410960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a9d67bda80f2908a6e0057ae31f091447b1e85290c1e8d9defc9642d4ddc86d. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/DEU602410961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7734733927ce24839f6d44645237c77461df744dd3755bc7a2b4ac482cc4f5fa. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/DEU602410962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b0f66c997762ba4083000ae20271cd5d76fce06c6dbd7db9072faf0ca197466. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/DEU602410963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3711f4f4ac70442a0f8140c177e123dccef826bccbd667bf95206d3c0b107112. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/DEU602410964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2ade0d9ede43d244cbc3e915ca754ef55fadb38aced42ea0d9caadc6e511716. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/DEU602410965.