{"copyright_id":"0x5edf4cbdac1bbbcce6bfc18b6246fca417903bab4ce8e4dc09fde02dab026b69","name":"Hunter Blair Ambrose","registered_at":"2026-06-20T14:11:56Z","symbol":"NIM1630988","token_address":"0xc54fe26e40cf87bf523ce5ce2ceafcad343b2709","type":"artist","uuid":"b55520d6-ab2c-4343-aae1-a0d351659b6b"}
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 0x5edf4cbdac1bbbcce6bfc18b6246fca417903bab4ce8e4dc09fde02dab026b69. Chain 2 (Bitcoin): anchored in block 954573 (2026-06-20T15:45:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b55520d6-ab2c-4343-aae1-a0d351659b6b.json and https://artists.proofprofile.net/proofs/artist/b55520d6-ab2c-4343-aae1-a0d351659b6b.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 0x7e7007c42abaf3c016cca89a9e9b0ebf9bd127ac30df615d0e2bb82e8a636bce. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZN882111208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae2afbc5bbeeccd242d714a9a10e734bad43b0b46f20e8f41b67ed8f61a217b0. 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/QZN882163918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35aab9cf73abd6107e605be91ac1dfe7a310302ec8cb0eb9c3e7fd29eab5c9fb. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZN882164677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f87aa39bbfad74c11744910b2909ce91d527e54fd6658b2e58c29b9d9053856. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TCAHT2461567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x999056b224382acb9ca1688e67da7daa8de49bf6c786afe14347d643be61da9b. 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/TCAEM1997515.