SMAN may refer to: A public school classification in Indonesia, see Lawa Antino Airstrip, ICAO code Société Morbihannaise d'Aéro Navigation, see List of aircraft manufacturers (Q–S) See also S
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 0xd8244195c679c33113aeb46a5061aa648a9475502f923a4b251a8e430ffffa05. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e588eb0d-f339-4c43-a536-f10a66b03a36.json and https://artists.proofprofile.net/proofs/artist/e588eb0d-f339-4c43-a536-f10a66b03a36.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).