Ten, TEN or 10 may refer to: 10, the even natural number following 9 and preceding 11 one of the years 10 BC, AD 10, 1910, 2010, 2110 October, the tenth month of the year Places Mount Ten, in Vie
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 0x10d1b2cd6a4c177d0b8e2dbd4fc9030a2d5c2c031efb166ffb63f21b52f1d19e. 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/bc2de1e1-fbe5-4f39-98b6-d7c2220e0b99.json and https://artists.proofprofile.net/proofs/artist/bc2de1e1-fbe5-4f39-98b6-d7c2220e0b99.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).