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 0xcea30bcd0306338397962fef2ad9e8b66e7460d0012c191626d4e4b72e147250. 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/b0d75c0f-d390-4993-8bbe-49236645c64e.json and https://artists.proofprofile.net/proofs/artist/b0d75c0f-d390-4993-8bbe-49236645c64e.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 0x0b7ee5e8aa4d2df14c59d37c6723806fe3874f7f39a79e67308d4d6efb8689a7. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:47:51Z), 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/QZN882234052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c16b1f65d3967bfa54b372eb75981dd88f6c88e02a343f71cf48e2ee96bfde1. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:07:58Z), 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/QZN882234055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6528b070499eafbff49a1a435f85c305fc3c1429667718bfeaf885cc937ada28. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T21:34:42Z), 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/QZN882234056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aa8cb0920c1a1364c7b8ff442bbe6f4eb162c46f6ab5b3532536b333a4f0e15. 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/QZN882234057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7b5db03127277804e8389cad5cde7598e19927a72fdf183910125e38196ea32. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T18:19:34Z), 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/QZN882234058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1445a61e07340cbcd34f990329112cb05bbea56736f3a8a34821b0868772e1e6. 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/QZN882234811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6d1a034c811370f24024d42254ef648c57c0791127c135be42924b27ed72bf9. 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/QZN882234812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd1a2b35535f4f503a9bd2d91a43570e5431457b6fdbaba34766cdc2b0dba406. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/QZN882234813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8e599b0a32ab625af5d5827a4f02e752edb142ec88652ea7a0a60ddca443822. Chain 2 (Bitcoin): anchored in block 958667 (2026-07-19T05:04:54Z), 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/QZN882234814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa504955862f4c5d070ef35cb852ae97895e4d03c9c6a77e7ae797cadafd252aa. 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/QZN882234815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fcab5462abb670c418d40c72203c68982e6e195a65ae1bb8eb531ea143458ce. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZN882234817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0230bf43a9385d1b3f25728b58c7cd8f97cfb868680c88b4d7c1d1e0ce03dc80. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T15:59:59Z), 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/QZN882234819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9887b09ebfebfe9a5d35fcf66c6384112a5ef4349db4dccd6b5b0dd21aa08706. 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/QZN882234822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc24ad0fa7dc608779bd0f8bac8d4463eccc83db035ed03e79297d1839bb8d7e. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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/QZN882234824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c23d0730fab26219144e6bef384953836e3cb8e6545d0991dde38cc1c258649. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZN882234845.
Memory fills the blood with anger (singing the fighters of the RVC)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe23918bc7b3e709618a3983fab5099c5250fe8483b97689e1edd457044d838d9. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZWDW2444675.