Naguila are a France-based Algerian and Moroccan ensemble for early music. The group was founded by Pierre-Luc Ben Soussan in 1998.Cahiers de musiques traditionnelles - Volume 17 -2005 Page 377 "... p
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 0xaa9e1ff16db2f49e78cb163e2bf52ffdd09cd7b99e5e6104e4f015968c94e9d3. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4ef4b415-2f42-41b2-b71a-07972145f107.json and https://artists.proofprofile.net/proofs/artist/4ef4b415-2f42-41b2-b71a-07972145f107.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).