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 0xb70c62ecdab8746aa679bbc1e07ee9041736171f6ce9c60d6ff207a0f3e3755b. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1b73f9df-1f4d-4843-b4aa-5dace7c248e6.json and https://artists.proofprofile.net/proofs/artist/1b73f9df-1f4d-4843-b4aa-5dace7c248e6.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 0x549341fd96c7cfe1b73b5de5d93185e6ff504f10212801ed12ac786422512905. 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/TCACW1780504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf0770ae17d32dbde6a4a0c688ca5dc165e342748e56a3d6cbee9c6a70692b93. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:48:52Z), 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/USASN1710049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97055807a57f4829a28098b767c4d29935b9f9fc07752e2cd1393427d9291d9f. 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/USASN1710054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e3e366a79350c1a838a9b636b93aca81ace506b41adde2d4e5d1f32afa7abf4. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/USASN1710055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05cee498b6c2e9d75284609d5d052ce455cd0cb7c5d6160402b96ca44cd4712d. 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/TCADJ1715667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2a935bd00cc45aa05e835448a7061b166efcde0d024b0f6c8e3db05daccd21f. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:33:05Z), 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/TCADJ1715670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeac3019fd9cf617ad6e7069928df788823cda9644e17f635c7145d4054a9bbb. Chain 2 (Bitcoin): anchored in block 958682 (2026-07-19T06:17:12Z), 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/TCADM1812661.
Whipping Through Trails (feat. Andrew Conn) - Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9716467b69bf5c82283f4aadf7ff17a92161cc7bb4b8f13df77a105c8442f76b. 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/TCAEA1980849.
What It's Like (feat. Sonny Bama & Josh Pray)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f3e6893feb6a0954f099e34438724dcb9be266544e07fac58f92a0e17e0b9d7. 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/QZEQU1900259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5f03ff5d83b365ccb6dcbfc10ae93ba0094b113d36cf52115319076e3616607. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZEQU1921973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd752928b65cfb8c7b9260493b2f96a383fe7b04d893ed99daa6e7e8ec417f168. 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/QZEQU1921974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x677b7d37cb4e0f8173765282fed4e1770d3643d72ea8228bae1f7332218e8b02. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZEQU2075941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa830b4100cd1e5da4ea27d1b990acc5b4d62fae7f381bfa5dab7917fd2ed78a1. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZEQU2104993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7d1421775b3526f096e4e15ee753dd7a99cebbcc7c72a74bb5177f527b51172. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:07:45Z), 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/NL4NL2151546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cde6c4d215a8d98143d1f0fcafac65566d49396e7f962304ec554b754567a0b. 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/QZEQU2104996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bad51eaea6647982ac0d1d360717c56b265c6404ad439943f4c20abdc3dc7c7. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZEQU1921976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd752928b65cfb8c7b9260493b2f96a383fe7b04d893ed99daa6e7e8ec417f168. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZEQU1921974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x207a1c0d6820d65df1070953a30a5270b447873dc7159980aa99c9902aa175aa. 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/QZEQU2401219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4e1cb64ae1e4c1cea12fe0ccabb90ca4db8819502829441f3d3598a3c98ed75. 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/QZEQU2401220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x913393ba8fb27fd32b8711e23ad41033af5f202b44260536ac168efe34630a6b. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZEQU2500287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bdc871c940838d70b12354ac0ba234115cb48106d9230ff5284b03fc142d39c. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/QZEQU2501726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28fc2896e02c5a184495d8dd78d0c887755328eb9d037b0881ca311712bd1574. 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/QZEQU2502301.