{"copyright_id":"0xcdae2bfbbd3caff4201083b21edd58da7aefc450dd33f2ee890d97a6b78639da","name":"Kazakh State String Quartet","registered_at":"2026-06-17T03:37:27Z","symbol":"NIM1268951","token_address":"0x74d7df4f2a4227e6954a1920fc0fb8f7e4eb21dd","type":"artist","uuid":"6d04e9be-008f-4cc0-80f2-faae97f67f8a"}
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 0xcdae2bfbbd3caff4201083b21edd58da7aefc450dd33f2ee890d97a6b78639da. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6d04e9be-008f-4cc0-80f2-faae97f67f8a.json and https://artists.proofprofile.net/proofs/artist/6d04e9be-008f-4cc0-80f2-faae97f67f8a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Music for String Quartet by Kazakh Composers
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 0xfeb120be8e79a90952d505938c12ecf027d840aa76cc7a48a8f7d18bff6e4a2e. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-17T03:26:26Z), 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/CH1221550204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fc61176db69c7254f0e6793e5b88fcdac7ce8aad0067b00a062d99489a7a8d4. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/CH1221550205.