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 0xb570719c07ebc0eebefc27dffc674c3004590971e1750ad8a7012246ac8c4f7a. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4f51cc47-b20a-4b2f-8d4d-04965e809bf9.json and https://artists.proofprofile.net/proofs/artist/4f51cc47-b20a-4b2f-8d4d-04965e809bf9.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 0xce25d40187dee458fe53ef9507deadb14efddbb2210daae05ff61da9e135b7ac. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/USDY42483985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ac8e417225c27bc820bad9713fddf74cfcfad37f7d6d64a658e1bb563520c62. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/USL4R2410161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb4709e3593780671d54bcc4da268228b4bec363f8e30b2b15ee7759c34e4bc4. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T20:24:26Z), 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/USL4R2410815.
Get Weird (WILES Red Eyes in the Dark Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9908300b5591f7f12a5ee052428796872ac780fdfee865fea2ce90c56382eb00. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:26:56Z), 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/USCGJ2529842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6447979edfc05b66549cf0c74eddafd887a1217b9a1bf86c3212b7eca3b5e93. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T22:36:09Z), 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/USHM22598028.