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 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 0x55d9c0e145227cd2a371c79f7e9d8523f64e6510dfd91596a48a246aaad4213e. Chain 2 (Bitcoin): anchored in block 953719 (2026-06-15T01:07:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/890bca5e-6e6a-4203-9ef6-fc31bb9d0790.json and https://artists.proofprofile.net/proofs/artist/890bca5e-6e6a-4203-9ef6-fc31bb9d0790.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 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 0xfad9dd1ce5a939277a62affbdd50025df5d7ed5e7b4f8bd43a82773bd80630e3. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/DEH742211131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e77bc3f522ec08098c6f6d4f171ef34142f0b1261c7cb823d2dd64fa112ed93. 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/DEH742211132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0868bce13e869f07ece07d544f39da2a92c51cc546ecc59789e03d1d27310d9. 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/DEH742211133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb306d76580592694180958a046045e8b35921691db031967181913a7eb146eda. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/DEH742207537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47dd7d2126ed2bd6c06c3f3460f8a5ac3b020fd962b343ac23ad87dc3fcd3dac. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/DEH742207536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacdb3bd45221c721696f167516f8b0855d726db4cc3db6a6e057754ac5c29232. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/DEH742202439.
KalaBhairava Ashtakam ( Jonajosu Remix )
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdca908ad7efd102bf95cfc548e8f64ca90d7e04fc11c86635348856903e26c83. 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/US83Z2337189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2791b14825c4d08ffc558a4c4d77193bfd9c0fb4d62a2b2d08bd62a1e32ad5df. 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/USLZJ1941948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf657bf0da16ccc5fcfba0169abd9e4db78f920d62ae640bffabf02312aa02147. 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/USLZJ1941950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8e8f7f99ed071db5244f3b33952e16e038cd4be8a6c4a99e482aacc79e453e5. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/USLZJ1941952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7595ae3b804d330c8ee06acd7e66bd7ddb17e7cbb595be019b724f0a5226fbd. 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/USLZJ1941957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1ba35aa2382d26fc8d7760de4b52f8de68f9e70289977b8cdbc6688e3a4cb65. 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/USLZJ1941967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e0fcd2af6721d55a5a1dae1ce160c020b6b569dd556483dbc9c36ea0c74cd1b. 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/USLZJ1941968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa022c581f4d91e679429fe70f694252de56f13d1c257ef548c48677aee06bc7c. 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/USLZJ1941969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x351ccc0770786038df66585506cfd99e11a8d101a9d4a08d4e7c4bccaba34737. 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/USLZJ1941970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0a551e946d424877694f87bec49fd6b78820971e6cbdbd49ab0769147d9766d. 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/USLZJ1941971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3718eee1ba6fb9dc88c8ce9acec20f05e4d6549ce42f82d00b309647014ae60. 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/QZZEB2457763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf826f225d44aade1596e16ff0e0530373932c0bef31fc1cf326cc3112e5b8c83. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), 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/QZZEB2457768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53eb131e076b0a650ed1474b083b076b5e0eb2d1efa711ff9c3fc274f0966d04. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/QZZEB2457797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72e6e7cf8c1c4fe9a6eae8102f8e50aea3adfaeba370d01e5ceb59a4252c10b8. 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/QZZEB2457799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cfe58cda772a531cb920ff97500dbf414ea7639cece5ad798b75842c26a3002. 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/QZZEB2457802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93f2f7bc51c38b71523f249791e5ae8dd9c6b9ac4ccad11f87ddecac45ea4dfd. 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/QZZEB2457814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a36cec799a1c7bc2ae280f781e566ea07180b3fe4f1b33a71dc2352e73d161d. 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/QZZEB2457821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d6116292d334c2eb94944d7643b9b597b81c620a3b47b6a96aa218b77f471fa. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/QZZEB2457876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1374bb27be3d3298f176cc716d97d038a947ed6e49ea75d5ee18c925c7161179. 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/US83Z2426930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9b48887c4b4139e826196e349ab3613c72c21afc002a8a28272ffd5ea44e1e1. 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/US83Z2426929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf45f2a6230e7d2c0c415189687b5dcec4b36c32758a08ab8d09447a0392fa7ad. 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/QZ5FN2073038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b79582c8f768573c56251b4ebb6fdb11e412cb82f71d311a839236a6ff9bff5. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/QZ5FN2073039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9bceb8587e1d3477292f2c7b761e688efe135fbd3281b32dcbe3a8fe756dd3a. 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/QZ5FN2073041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc44e79195b4cb7764b290a1b314ee1205fc36f07cacd9c3d6f0379a73803c92f. 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/QZ5FN2073042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfd9522b687f1cfead9020bfb7e861a5f3958a3af33e4b81e29414f5e7e448f6. 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/QZ5FN2073044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa47f01a7cb73100f3491b1fea7e166b31aca7bbd3e6c3577d9052a8413bbcb64. 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/QZ5FN2073045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd432b5486f66775bf6dc56837b985c6b7dad4ab145cbc741a1eaaf9dcb1da41e. 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/QZ5FN2073054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d1075f7da4086a240aa964288d631e20936a66db9f858079cff8f18cafa0178. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/DEY472472027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd316e24cfbabe839a3c53131ab6ac7b8b4f92914aa4724d1317c44a9a634120. 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/QZZ8B2381754.