Arga may refer to: Arga (river), in northern Spain Arga metropolitan park (Mancomunidad de la Comarca de Pamplona) Arga, Karnataka, a village in Uttara Kannada District, Karnataka, India Arga Beac
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 0x413a96a229b2f049cdafa3234909b5d0ef6596953cea6eebbcf6e1e4bd550b30. 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/5001b2d1-a6f4-49ea-8349-0053a9650f6c.json and https://artists.proofprofile.net/proofs/artist/5001b2d1-a6f4-49ea-8349-0053a9650f6c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).