Sahar may refer to: People Sahar (name) (born 1985), Arabic feminine name or Hebrew unisex name Sahar (singer) (born 1982), Iranian singer, musician and dancer Sahar Aslam (born 1982), Scottish c
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 0x9440461141fe813e206b61b2e18f77dc7c6d3feb5ed204462a98240f8bd2793c. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/89e76090-997a-4b69-a054-6b0cacee991f.json and https://artists.proofprofile.net/proofs/artist/89e76090-997a-4b69-a054-6b0cacee991f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).