Under the Skin may refer to: Film and television Under the Skin (1997 film), a British film Under the Skin (2013 film), a British film based on Michel Faber's novel Under the Skin (TV series), a 1
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 0xf08dda8fd9ca4c2b9c2fac6ce2113f288d74dde4418fe66b5631ff1b473b5b1f. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/81d053ea-034c-4b8b-9023-a5306c125e67.json and https://artists.proofprofile.net/proofs/artist/81d053ea-034c-4b8b-9023-a5306c125e67.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).