Asak may refer to: Iran Asak () may refer to one of several places: Asak, Gilan Asak, Hirmand, Sistan and Baluchestan Province Asak, Qorqori, Hirmand County, Sistan and Baluchestan Province North
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c456c2d449f1b4dd283d1ac0800e14325f0acf4f56addbde035f8986248885c. Chain 2 (Bitcoin): anchored in block 954623 (2026-06-20T23:40:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cbac5586-5bc0-4776-8720-4fb57779f41e.json and https://artists.proofprofile.net/proofs/artist/cbac5586-5bc0-4776-8720-4fb57779f41e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).