Saha may refer to: Saha (surname), a Bengali Hindu surname People Arati Saha (1940–1994), Indian long distance swimmer Arthur W. Saha, Science Fiction and Fantasy editor Arun Saha, Bangladeshi acto
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 0x299751e48a1c790293702745459a3332175e3b830777c9bb442565ca464f38c1. Chain 2 (Bitcoin): anchored in block 953620 (2026-06-14T09:36:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1d256c27-524b-4efb-8fed-d22c3fd908de.json and https://artists.proofprofile.net/proofs/artist/1d256c27-524b-4efb-8fed-d22c3fd908de.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).