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 0xfa6a3d16311b5668767fdf5fc7f8f9abf35213449e479d1317f5f09caa5d40a5. 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/7133ecc6-e107-432b-9d5a-af842f7a3d7b.json and https://artists.proofprofile.net/proofs/artist/7133ecc6-e107-432b-9d5a-af842f7a3d7b.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 0x0541cd44a403d25a253591247605851210de96a5bebc1881eae51449ac9279f8. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/ES71G1843713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd13bee0c628dc4859d2f11653f7a290b214a0b82a8fcde1c6d6ce6f73adbb804. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T08:45:16Z), 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/ES7382100042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14148078cab002a7a79263bf2588f9c00d14249a3e65471e77abe1178b53f1b1. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/ES71G1831584.
should sleep - Prins Thomas Diskomix, Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b265de60e36004a2e8f627c2e195264cc2345e8bd7468dfe772c1b66648985d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GB3AD2400050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0a11bcf13b8b875b0165d3e728a2eab12699b89f116437eed89333943da45df. 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/GB3AD2300096.
should sleep - Prins Thomas extended mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64c258ebfc36bda4d3a8331095f77eebc82d2a5677612aa20d57a389149ec641. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GB3AD2400144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50c386f4358ce1a607f392bdbf09628851ee8aca332c9712dacd6192a64a1782. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GB3AD2400150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56d7809d8798d3e794aa264d936f4eec9321207987d7b958c67cc3588d1a263f. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GB3AD2300098.