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 0xc201f11e2a39b081deb1cbe7d02bc05314990403baa1ca1d3f602c230003979e. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e37d370a-da08-40ab-8d51-c6d268756e9b.json and https://artists.proofprofile.net/proofs/artist/e37d370a-da08-40ab-8d51-c6d268756e9b.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 0x4492dd32b9b2f861e9a88e01365f89e311966ead1d507a4b50af947043641895. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/DELJ81955633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08c3f4902b7f70c0bde7fa5d0cd5efa4dda16ac99c89b17ea0c6b7e1ecc54ce3. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:38:30Z), 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/QZHNC2484784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46ca7aacffcbf890e537ed1a3d2cdf9003b31cdcf8adff9489586533ba3ccf41. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/QZHNC2484785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e82a940ee973619bc0882792c73977b3e95bcb43ab14321edcf6f6180c36e16. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/QZNWW2406884.
(Instrumental) Mood at Stonecircle of Uragh - Instr.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fe4007dbbc5b141e63c60df721710b75c91e039cb0c547e4f8ae2588c01861d. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T06:49:52Z), 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/QZNWW2406885.