Dev, devs, or DEV may refer to: People Single names Dev (artist) (born 1947), Indian artist and poet Dev (Bengali actor) (born 1982), Indian actor Dev (DJ) (born 1984), British radio presenter, DJ an
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 0x014b362d17b6835cea30df37e38b8ded21e57fa9ef9b06c000d1489f6e51cb13. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bc8f5d3e-124d-44e3-95f8-2646bb2569a5.json and https://artists.proofprofile.net/proofs/artist/bc8f5d3e-124d-44e3-95f8-2646bb2569a5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).