Andrija Gavrilović (; born 13 January 1965) is a Serbian-Italian professional basketball coach who was lastly an assistant coach for Virtus Bologna of the Italian Lega Basket Serie A (LBA). Coaching
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 0xb6d9b4066cd4fd3ca7888240ff557605e965931f65d7b0d04e593efdd6b2fd69. 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/74dccccc-c37e-45f0-997f-62574eddca9a.json and https://artists.proofprofile.net/proofs/artist/74dccccc-c37e-45f0-997f-62574eddca9a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).