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 0x1e04147c180c8e6794f5fe74d7f27ef5965d3282dce08b6dfe8cb8252b9a0c2b. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c69c4969-aa61-42f7-a351-82f6617b938b.json and https://artists.proofprofile.net/proofs/artist/c69c4969-aa61-42f7-a351-82f6617b938b.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 0xf3842a3e983032c92add3586d0e7ab379b3fffae78556cc679e67dd2a30ff3b2. 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/GBKQU2452985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa211dd5b79785d3dbb47d99cd6544f96a171ca753f090be9ee05cd66469559a9. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/GBKQU2452983.
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 0xc2b6cba4142584c7f2ad56896f9a3b40ee53c412b360dbc4d2058a79aba89c55. 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/GBKQU2407625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7d16650942f8ba89a8d94b477e1332d55f43b1faa004452a17a99e91b125a20. 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/GBKQU2284222.
Foniklab Records, Vol. 5 (Compiled By DysFonik)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e07ebf10757ab6da4f52bb6681c8511b30af57e684fc3c1e9c67367938baa49. 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/GBKQU2491878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a95e6c301d1fee73d51a3f95ad8f45e8721dd5b001948b18b1f6e671939dcc6. 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/GBKQU2491879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x332700d8a6cc4c4491df53b4631be8ed2636fb460f794544eeb8b90b09769028. 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/GBLV62404156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57869207e85da0a0532c06ada04702d080f047e918a9f88a05d1488858c6c4f8. 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/GBLV62404157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77f42cd3b23869972e7ee6f07443261e2bf64f8c911aa9982abdb9bb4d5bfa89. 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/GBKQU2491886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x295956deb12fa644075ba07984efbfb6a9e70ed361b1d2a14b20f98774c408b3. 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/GBLV62404158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9bff3b105a08d70c9b1c29b69b6e1c1169903aecfc702d5a3087678cf8f762d. 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/GBKQU2491891.
Foniklab Records, Vol. 2 (Compiled By DysFonik)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x682b9a794ba99f98426d1931bdbdb1ce677b9e9000a0b982f43432ab30183bc6. 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/GBKQU2281555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x783a595dbf5928aec372b1de30fecaa2c67c466d1ba0be998051896a94b34d96. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-21T22:39:58Z), 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/ZA03Y2200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71eb3e307592039c083c850123988cf6826cef5a0e1cc944bfc85bcaf475bf1e. 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/GBKQU2289484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a8ef2af2b9d3d8e1890c25f55ade0f9ef6663c8d06edc5ac7d5704d7a7f352b. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/GBLV62120031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c9027d2d4d97d9e80f841ac8f6043a80a21f64b6b2daf213b0a6312dde70b5b. 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/GBKQU2289486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x866d8aafe29fedadf3482828ea40f201647078331362182fb65702ae3757b9ed. 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/GBKQU2289487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b56a73a31b7b4756888eaa356d16ecc32ccc25911dc8ba42a8fd557abc41ba1. 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/GBKQU2289488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0daf42fa99a8f447354fd37bff7703254b02b358e08d51c1d2726678aae5c19. 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/GBKQU2289492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0b0a8dcd56e2f12b5688e6efcf7f78e6f5ee4aabd0a9cca191baffeba360ad6. 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/GBKQU2289494.
Foniklab Records, Vol. 3 (Compiled By DysFonik)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x206bba7f2114b996de3e230b19cb9f05fe5eb90f67b5700a87087b04cd90c5a6. 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/GBKQU2362847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79000d8d34e13c187547761b8fba41f0a1311a0b9b6d226337965e48bd7ca197. 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/GBKQU2362848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48daae9f6e38fdd38059ffc2f86764a27299e4cf47bc70477c991ce3eb21f99a. 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/GBKQU2362849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe39f62971efa0d02314654e533ed8010bf6fe5dd3748bb2f1b9f13d6a233ea61. 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/GBKQU2362854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf47531040d0f309ab98c5ade678da6842ea857e7a83f69ee8f93cfbc817b6dc. 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/GBKQU2362862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f98384a90ec2cbe6e211da89bbc52a3f16eaf7c544088ee3fcb1083259c725d. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/GBKQU2362852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64368c34161ad31a65ab75190e36659048a36c8021ab8fd49e7a11c83d82c8fb. 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/GBLV62203665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15c7a8f8bc4ceae08c0a991e9685b4b482c76ab31e7cb7095e53c26114986761. 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/GBLV62203666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3dcc8ff3b67f211394100f85d207b0b80960344ca8cc4f5295d3bcd66859b4b. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBLV62203667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a1982381e7d998fc8fba55eeca50010ac4ddf3bc476075f1505de13741b1be2. 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/GBLV62203668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0228994f019715412ca156847b9170d0460f12ac7759c5402b284c7bb6f8f135. 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/GBKQU2297942.