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 0x8ce7c6e8cc2712dd665f7c097211fa54bf564f98d49e530c47b1525f5be1060c. 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/bdbb9077-4c76-4e84-89e5-7329765e8f16.json and https://artists.proofprofile.net/proofs/artist/bdbb9077-4c76-4e84-89e5-7329765e8f16.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Almost Lover - Monday 2 Friday Radio Edit
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 0x7360460be51781e4cad2939ee7871445c260741a4e5a14e2dae2df85591313eb. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/DEHK90910202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc355a1471af8d8b7cf0cacbada7ca05f3cd4bee1378be1dad1da6283ce48dd26. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T20:08:24Z), 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/DEHK90908101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bb080205ea253b8a3e12b2a70996dee7be77797d27bd31eb4505a7e24754ee4. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DET191204605.
All The Things She Said - Manox Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6afe99e50dfdc11ec27aa86e6baa1238600ed32f338ae5b422b1928d849977cf. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEHK90806583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ac0416751b3ccd6df89b6f8d19617dfb9d0e4a0a61231eb2c5f46f6868e4212. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEHK90910201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87115f83f13caade6dcbfda7172a7893bd39b1252a118e6922ddcb583ef487ea. 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/DEHK90911295.