Haram (; ) is an Arabic term meaning sinful or prohibited. This may refer to either something sacred to which access is not allowed to the people who are not in a state of purity or who are not init
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 0x2b8aae52acad95dc79fb375c818837948ad0d3a122c9154fb25f0eb574e85697. Chain 2 (Bitcoin): anchored in block 954038 (2026-06-17T02:57:22Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3dfc33c9-84de-41f5-8a3d-ba1f343463d2.json and https://artists.proofprofile.net/proofs/artist/3dfc33c9-84de-41f5-8a3d-ba1f343463d2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).