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 0x652db870a387af679b2cca658a16eb744bb7dad9102d0844018404caed47975d. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c0fa3312-2126-4bfe-9e81-6535bb7631fc.json and https://artists.proofprofile.net/proofs/artist/c0fa3312-2126-4bfe-9e81-6535bb7631fc.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 0x09115e2e023983a77f9beefddf989df0b65b7947a0ba4773f924a9c5f887f8c1. 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/GBMA22563281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae533e3e7bf0fc0fd5e48b87f0e292ffcca2cf3277754d67e285401f46874725. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T04:57:46Z), 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/GBMA22563283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf48a66d91db3efc3ff373542f90668256dd921c3be72973864ee836385234783. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/GBMA22563284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebe9e20e57f75309a7a098d40060920eca0ef7d1f3f9a891091cdecab47634a0. 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/GBMA22563285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa49a61d0e31cdbb2d5805bb09f28b6bfc3df470a55b00fafb6e94c01e8d46c17. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/GBMA22563286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bab02a1ab32d9938f48b58e5d00120ae2f239610118f288ce01fe9898ba6771. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T06:57:53Z), 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/GBMA22568824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2ba3158a4c7ad468d9eaefd61dc51a206dd8bf69ec5b57192975f4045b4b596. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/GBMA22568826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5125732c97e6c6153d604555d4216a3f38acf8e661363d168cad558977eccce4. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/GBMA22568827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf67007e3b5d99d9b1c0bf0b3fb57b7cae55d91d51b056a2faefd70d0ea1da7a8. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:18:20Z), 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/GX53U2517453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fe6fe56c83f7e7b6ec4da7cd1311b72c692abc7c55f97b7920f77bf37c4095a. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/GX53U2517450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1edcc8c1104b3bdb685e8c5eac0d603cd366c03ca462693eca6c56a1db87e305. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/GX53U2517449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ca72dc4f8014c9d1eee0f61652a89642d5ee70c6bbfc1b4e1e20708ffc3c7c4. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/GX53U2517451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x182963b2eceece27510e059f4079a21e153eca48649a5e175cf29ac0e65423c8. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/GX53U2517452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0a7e80982dda47953e2cb4c2abe3bbc56706ecb2620c84c41ec769bae85d135. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/GX53U2517454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fd00d35a73349c307739f710f504a9d466f0a7c605a9d219e544164b0c9f3a1. 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/GX53U2517455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e955fdb9c9068edaa54ef99132c41e7ab554c3ea1d9490c5396827b95241b5d. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/GX53U2517456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb41ac14ccf559dc00d81ab3d9e704803c917a9a5b547efc17d7dc40596e3ac19. 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/GX53U2517457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24fca73148f2bbc1f60a4c6c581f3c8ac5c714ff22b0338edf3ee481510c0c68. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/GX53U2517458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x076a518fba15aeddaa330d0a001e2ed18ccf4a76080753d06065f9759041cf31. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/GX53U2517460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x766372538666515a9d9d1b30ade7f3c2c38af24b6d450d93f7e3895932840a3c. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/GX53U2517459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee9be28cba0883ccac7d30df624927317148de05557401b0840177be249f025f. 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/GXHAF2521647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0723df48844f05687060e862aea12ebdef2d79fd7b10f7842235a9b447a48345. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/GXHAF2521646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7eff32af2b280e088981bd432cabb4fbd4e426650c2cb3ebd0bfa5324499592. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:43:36Z), 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/GXHND2545227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x441f3c2d2fc9e21f4fe47029be8f73782a8018ba7664a3790fe84a6bdbfb0ff6. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/GXHND2545228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3010d8c02f727cf8a8718635fd45387f18e572a26a56cb292832c500020a90f. 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/GXHND2545229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08813e75aa3eb0c995841799d9dd6380fc68360cf53dd85b4802e1f2618bbefa. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/GXHND2545230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cf13ae57b95cbca02bc5e3705ea372c58ed50dd402264af87347f5c24653e7a. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T16:28:37Z), 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/GXHND2545231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b0a0937d62635154fee241bc44b61bf77dff566d29d18ae465dcbee878aa8a1. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T22:11:38Z), 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/GXHAF2544653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc88dfafa72332dac96b1efedace23b60e04a21da089f428effedfa9bb1c91d71. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/GXHAF2544647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5e55edd37fbb7b8e090b2c112fefffe089ee525170b8e1f2c3e99d7213f9fbf. 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/GXHAF2544646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5e7e72cab0ad71569f7eb228117572ea0577f71694b39ddac1af2fa39bb12c9. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:59:46Z), 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/GXHAF2544651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07011b676130b0c271e192dd4a23482264f8eb30c25505a0ce32fa6f35860aa0. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/GXHAF2544655.