{"copyright_id":"0x76cb37bdd72fbe2e9277c3f27b6d8fe3b6cc5cccc74f87f7ad7eb2c25bcf08a9","name":"Michael Daughtry","registered_at":"2026-06-15T07:00:58Z","symbol":"NIM0718510","token_address":"0x3443cfe6a06f2d9d7b3161b6f41c4ff922a3c3e3","type":"artist","uuid":"fbd129c1-f6b9-400b-ba37-ae76f9dcf7bf"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76cb37bdd72fbe2e9277c3f27b6d8fe3b6cc5cccc74f87f7ad7eb2c25bcf08a9. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fbd129c1-f6b9-400b-ba37-ae76f9dcf7bf.json and https://artists.proofprofile.net/proofs/artist/fbd129c1-f6b9-400b-ba37-ae76f9dcf7bf.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8fb3ea985cf769777b8a6f1da5419aef533cec6b4d621e536b4ed644e2118f6. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USHM22323398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aeb93db8c197498184fa14bb68acbc7614e8cb7618cd4fc17fd608fb8a8dcb2. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/USHM92436613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11f4468675ddedf5d4f594a43f92f31e8fb8c5f550ed31ed5b99731682ea93b0. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/USL4Q2476382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe74d29cf12ade21b789b6851e437e9a726181be0a53571ad6aa278d2a432b14d. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/USHM92519072.