{"copyright_id":"0x4d3a30fdd9d99db1ed8ce1c9ceb766bcb0b856f50fccb284e404d1ef79a34e93","name":"Larbi Chouchana","registered_at":"2026-06-20T17:36:35Z","symbol":"NIM1669735","token_address":"0x63beb2dfbe55741b6b0acfa15f1a8be8ee2c1d2d","type":"artist","uuid":"bcd5b7da-20f8-41ef-b3b6-d43b1ba85a4c"}
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 0x4d3a30fdd9d99db1ed8ce1c9ceb766bcb0b856f50fccb284e404d1ef79a34e93. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bcd5b7da-20f8-41ef-b3b6-d43b1ba85a4c.json and https://artists.proofprofile.net/proofs/artist/bcd5b7da-20f8-41ef-b3b6-d43b1ba85a4c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ya marhaba bwled sidi / يا مرحبا بولاد سيدي
Sabrina / Ya Walfi Ya Malek / Ntouma Chhoudi
Echtah Echtah Zendali aala laaroussa / أشطح أشطح زندالي
Ya Ryma + Win Nbetou / ياريمة + وين نباتو
Larbi Chouchana - Cheddou Bentkoum Alya / شدو بنتكم عليا
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 0xa2ebfb83e2282c1d6adf37b2124f267670d2083a92e5da868bffc6b35b5006f4. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T05:55:47Z), 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/QZFZ22532853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe230dacff2f281a585978541980da229119fd237e182d63f89753b9ec8d970f2. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZWFN2516858.