Mellow may refer to: Mellow (surname) Mellow (Maria Mena album), 2004 Mellow (Donovan album), 1997 Mellow (Sonny Stitt album), 1975 Mellow (Houston Person album), 2010 "Mellow", a song by Elto
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 0xeaed9b284ea29ed0de73785349850d5b7e62a45e1eba92f3ef536c0dedfcfff6. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/75fc0601-c81f-4691-a57e-2350d10a5102.json and https://artists.proofprofile.net/proofs/artist/75fc0601-c81f-4691-a57e-2350d10a5102.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).