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 0x50b8ac47fd40047d892c7dd6991940733ae60fb231c41418bc73d31e617e98a5. Chain 2 (Bitcoin): anchored in block 953630 (2026-06-14T12:06:27Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/30245bba-db8e-4bbf-91cd-47d03e67f711.json and https://artists.proofprofile.net/proofs/artist/30245bba-db8e-4bbf-91cd-47d03e67f711.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 0x59e4edbd50d9255eaffc5a3d2f665053ad2016330a6e84dcbf85a5e16ad0c170. 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/GBLFP2345547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cc9cecbed516363648e3f3af11810b12acdcfa7111d7a3be7545c3799d44bf9. 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/GBLFP2345553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6bf0ac52cbe25099d801c4d58df3771aea08a863496aec4bbb3858a9e65eaf6. 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/GBLFP2345554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f302d879637dd23697543d2046829908fa69c2df3766063ea3226184093e9e3. 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/GBLFP2345560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b8c129e24ed2f602d128a4a5312d17b7b460e64455930a9cd16f8ba67f36a4c. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/GBLFP2345555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf211f77f6b291fdb4f0a409de8e2c02808b7afca44d1bc0e1f669518e8ff532e. 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/GBLFP2345558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafd692317f3ae0058bb992c4897e7def2323899d71dbdfcb7d562e5e1c606bd3. 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/GBLFP2345559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a7704f6f7ccda601a32d7c10cfd208d5580c902a313ba1853c0e397494829e1. 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/GBLFP2345556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3b7302d425f205bc93c3a65b6315fc2940ffb5df2bc0939014ac577891f5e69. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GBLFP2345557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcedcaebceff0fe57b49b47c40012c713918fd481eceee7b8a6f830547c81c57. 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/GBLFP2345561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2725c7f40e038ed1846396058410c017dc25c3a77f0a486db6430f41d24c7397. Chain 2 (Bitcoin): anchored in block 958495 (2026-07-18T04:39:02Z), 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/GBLFP2345567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53adf2a67732e383d0955fc9fc4358b7a36d8467172e19d9d776c0d1ccda67eb. 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/GBLFP2345562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcf8c3faef399715efe9b3b3f1ffa64664d7add4d963b07c3cf6e12b352c8744. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/GBLFP2345568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x989b824460d977ae8b60cb4774c96185045769705ae21c01b29bf5a75e504225. 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/GBLFP2345563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fe62881cc3965ae4c4136fa719e5e4575dacea2548aea27617b0e6d2226ecd5. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GBLFP2345551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d745419328e036b1277f6b3e0e4f1f63da57eef74e156e7b1740c966d2dd42b. 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/GBLFP2345564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b3d433e6ca75fdd4dd602199237ef416c2ebc610bce90e8d665b31ad3a379e1. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GBLFP2345565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2262220403a1a6d186f135f59e5d91fb7b10a713fceeac97a4be12b2419a5cae. Chain 2 (Bitcoin): anchored in block 958571 (2026-07-18T15:39:25Z), 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/GBLFP2345566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0de1c968676d6b990feb9217c7ed6c41b5bbbb05346c5fb4ebb47a6ce8041620. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/GBLFP2345550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4e8a6562cb61b8e9d959ea828fe67e74104bd6c9cc891864c80a9e405777634. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/GBLFP2345549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03cd3fca351116874854f51b6646a7fce82a055381b7b2b1283c27ed5438c755. 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/GBLFP2345552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacbfb9f2da1340f7f7d2cbfd27e1b5298ac8c28af52fe14329ebf05eca631dd3. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/GBLFP2345548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ae54e23ae552357c637628be7671657a75027e958fde9a4f6fb989f6fb7d40d. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/GBLFP2345569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x030702e639808c0dabce887740b2d95def7554a18f605cdd44f23d4886cd08af. 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/GBLFP2345570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x155b351791648e011a21cf72ddca8e2250a4ff5465499944b14bc3681b47af6f. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/UKXN22562566.