Rel or REL may mean: __NOTOC__ Science and technology REL, a human gene the rel descriptor of stereochemistry, see Relative configuration REL (Rassemblement Européen pour la Liberté), European Rally
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 0x52ed02afc175cb0d4287f002fa6c7c3b3b5faf21831535b77b20ad72575087c3. Chain 2 (Bitcoin): anchored in block 953899 (2026-06-16T06:37:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/131c5b3f-9118-427f-a7d4-0a6c17dbcb12.json and https://artists.proofprofile.net/proofs/artist/131c5b3f-9118-427f-a7d4-0a6c17dbcb12.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).