RVF may refer to: Racial Volunteer Force, a violent British neo-Nazi splinter group Rift Valley fever, a viral disease first reported among livestock in Rift Valley of Kenya in the early 1900s, als
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 0x45a33634724b804ab2579359a27db4caac6ecff28a2f678a3d7514e9a5b542dd. Chain 2 (Bitcoin): anchored in block 953641 (2026-06-14T13:54:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3bd8ccb0-82fa-41bc-a10b-115c2f1d8a70.json and https://artists.proofprofile.net/proofs/artist/3bd8ccb0-82fa-41bc-a10b-115c2f1d8a70.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).