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 0x47af191c0dbcdeac1a3efd91498bf70d1a5e4aab6f10f3f9a7ebca7322aff8a5. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/56da410d-7035-449e-872f-fd82f927e2a1.json and https://artists.proofprofile.net/proofs/artist/56da410d-7035-449e-872f-fd82f927e2a1.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 0x1fdeff8e2ba8eafc7e51d9cedfa5e13ff9612cea9695e73113ab7ce1a5a7b072. 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/GB8KE2156807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x944690452763a82f7132c051a55d4a333bcb8be7b67315211078db4bba6fe881. 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/GB8KE2156808.
Bomb Squad - Mixed - A.M.C Forever Dub Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90a130c0ac14839a1be2152e80c923f8ea3cc21023ad528956cd0b9310644131. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GB8KE2156809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3fbf3f73278c3a88f910f4c5a72b34c8b8bf3d2ef33883582c2df0a20379b79. 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/GB8KE2156810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9c4f80cd8ac717e2c7f04c7fc2b455f1d6dd8d241496938038220e81d261dae. 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/GB8KE2156811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fad4b775039f7202a014ef52de251bf5009eb2b3ab611c0859073d52e40bef4. 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/GB8KE2156812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0481b44e9cc9334a71565e1c552a7b91621f6fddb3dc5967162af17bcb939147. 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/GB8KE2156813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3373c99bb7af84d619cce028b52088eacb8d54002b022a4b40825e35d1624048. 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/GB8KE2156814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6230bc2fd467b47a3c310c3f9945a47bee2f221d9b413e485b6ecdfc3bdf037. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GB8KE2156815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09d998989d9df649cd5486ded3347dd8937706294d1b1c37c8aae54bdcbaa7d2. 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/GB8KE2156816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e8d1f687000036262f2a5f3dd0e50fd2a908465078b963f5387cbb43a12cc95. 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/GB8KE2156817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64eda43fba8cb5191dc6c93f1ec4b1134f945fb12f04d64e50f41362cf05314c. 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/GB8KE2156819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49ae01bbcf3851f0b6e58e540c96e8e38d0347600b494175e500653cce39fe2a. 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/GB8KE2156820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c69ac90eeef370686319cb4f5707af915a83c3c8d06364a20992ffd346903c8. 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/GB8KE2156821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf38b49877f7bf923c12ff0c16ef86ced95185f57e0fbd2a6af3c4d1d650a122f. 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/GB8KE2156822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x150c991dd6282d3e5b0960e9c85425a5f1f30e3d0410b3ab71dcb4e8ffbecc0c. 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/GB8KE2156825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51c54d3b8f7bab573facb5d667e5a384e115ff21c487fc0dfd1e198c6b3a80a8. 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/GB8KE2156829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x317dfd2c2f05aa5368ca861b35279fcf720c14ceb95f84b7269edd4414c18a5b. 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/GB8KE2156831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3daa161136ceb0fbe2ecd18cde9949335eb7965d60bdc0aec9a3eec33a77b159. 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/GB8KE2156835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x979167f524e044a645f75ccef55d507fd2126bfd13ddcdab16c3bfff392856dc. 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/GB8KE2156836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52b66a96399329c3543e473d04204b2479654cab70009db55a5729c27927401f. 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/GB8KE2412349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaab043aa859a5cbc2ce80463782196fc2b0d1f1f56d0e2536dbe43791cb0e467. 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/GB8KE2412355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x870226a46ff9595c3499d348f4d7408f85abd2f87d62ee6505a9a0f3fa12aa1d. 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/GB8KE2412362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87f1d5be3b98f4b601f8e5b252bc43e58994723849ee90893f714256c2a1675d. 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/GB8KE2325203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6ebfa60bc27b7b40083739112b241ae20d8314629ead421948806a5c4156a18. 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/GB8KE2417463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f90a284fb4d45a8cf8450ba4a02964abbb90b6984449945e13ca27347e94c7c. 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/GB8KE2422509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73d27f47c03b0ef8ac9469165a1561e63d108932b33f306dcb32f4a342b15f6d. 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/FR2X42508318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x593954886859e02be6e1d835dc278dd8353d518d2d7af01334b43b120f50f5b5. 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/FR2X42508319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99e2433731e1caa7adf12cdd9483e29e17df6d09b23389a6cc5577ebdec09dca. 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/GB8KE2202297.