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 0xe30dd6777ed1356938d21c7908bfd0b6d23699c73bc315ad06074aa63f0d84c0. 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/a23e9f77-8be3-45ab-b3fe-8c35571258fe.json and https://artists.proofprofile.net/proofs/artist/a23e9f77-8be3-45ab-b3fe-8c35571258fe.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Music In The Soul Can Be Heard By The Universe
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 0xa22732702cbd1a08a2c8f27429648fd850c7a10a1a62e026bba92508899c76b7. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/DEY471814644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35118798c528fd1a8a3c0c0bedfbef9482145cf03ba9f950d5214fee07857646. 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/DEY471820926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd59cd298c99efcebde22e2081978033b3f476132d468ec4324d46b32be16c32e. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:03:47Z), 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/DEY472174524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aaca8c21944280e4872d745f5b2f0da938c96353ef9bb7db4ddae48e9dc3822. 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/DEBW22400141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3975bb0590ee5a3141c3569c31cbe4c386b9cd982957d953da06e26d28cfe82c. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DEY472480744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x034f4fb0f3b08e2697a790399139098cc09c86d9a6d75b4345695575a1d393ec. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T10:53:40Z), 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/DEY472570271.
Sound of Chicago (Detroit to Tbilisi Edit)
Sound of Chicago (Frankfurt to Berlin Edit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c34eae06cb8141e7b017ca93e90363ae433d5f29e6de3fadbf419838ab9910f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEN062100647.