1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x89f36d15a7515634cc43f4d31f909df70902c680584e4514de9560cedc68cb1d. 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/3e470a02-4e7b-4d3f-931b-135b3552fbc7.json and https://artists.proofprofile.net/proofs/artist/3e470a02-4e7b-4d3f-931b-135b3552fbc7.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 → block OTSBitcoinBlock must exist at that height 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 0x0efe2992029106e744675c3d2be77125e2c58c8633dddf1cebf9f8d4ad856396. 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/USAT20003185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf48258b49349f3c8da5bde8d712bb10cf16d2e52525b704508fe68cf241573c8. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/USAT29901369.
Until I Don't Love You Anymore (Online Music)
When I Look At You - 2003 Digital Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91d4fbb04f66c808f6b19669c4d5be0f02349e92837e02481a82e92c4c30b795. 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/USAR20300125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf64a844a7e822e72a16594b1a5fd7908764b73f92b40f9224a05585194206a5d. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USAT20202781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e28d2a6454fd2c8cdcaaafe8a1f6128de89e192a977fbd4f033a646558ef289. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/USAT20202773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x042a60cf33f3b544add91cc757b7701dae5e150a92cd30635ce7191e08c00d5b. 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/USAT20202777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb58ccc6d3b3bd7141c2cd6fa47a529577e064ccc719e46ef1ce9daf0db70223. 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/USAR20500131.
Man of La Mancha (I Don Quixote) (From Man of La Mancha) - 2007 Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd296afd0e4744931f8dd13468e042f2211ebcaf4fa640bd5f5adc3103b2d32b6. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/USAT20701513.
Someone Like You (From Jekyll & Hyde: The Gothic Musical Thriller) - 2007 Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c540a063f969c8f125deeb4a08dcbe944206d3aa0900079666bf0339a38a3e9. 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/USAT20701522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d9b332c2da391108beac15c2757425b25d45395064eee09da7725661c07a52a. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/USUM70985140.
Jekyll & Hyde: The Gothic Musical Thriller
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x021d201bfcbdee91295e620a7e66f30dc036899caa7a72136211066d0bb7a4d9. 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/USAT20403106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc01bb0950b1cb310893234d79a275f8be3920d58fd1a6645434de6dd45280582. 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/USAT20403095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53981ebac78d431477fa2f842c3c3e2f5d6c24d713b5317655591eaf63924974. 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/USAT20403096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68b57b98fa6beda4deeb41caa421d080a9e45fb31376fa41d75e9870814765d9. 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/USAT20403101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91c58f43ac98dccbff3f30250b64261fd3840d2dcec88477a34cf59d9c6e366c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USAT20403105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b6deba8bb573ebafd6c3f3bc0323b8d2a968bdfeb8c50a209b840a28bb17610. 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/USAT20403082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a7de2644d541646dea3d4d3d1d5f9238359bf5c99b6bec96dc5e8f1724544ef. 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/USAT20403110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e61125fc38cdef29fdd152244fe7e223c8ef1a9edbbba2667ed84e61775d954. 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/USAT20403112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26d34bc93c52a94e34c6643557d653a41c6347ecc7125cda399acd58dc66bdde. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USAT20403114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x348890d43e0aba338c9ce13bbbe467ce74c3e9ea60d676cb9d8b835620bab39c. 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/USAT20403115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe10e4d1a3b9fca6d9696b3272140f832c18fab5410a0f4d89474bfd96c4a7be3. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USAT20403118.