thumb|alt=The Crane Wives The Crane Wives are a four-piece American indie rock band formed in Grand Rapids, Michigan in 2010. The band currently consists of Emilee Petersmark, Kate Pillsbury, Dan Ric
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d124499ad83a59ce3b7a634ee071a90ad45300f92a48955d3e32b3db38b235b. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8f3b8193-1d69-403a-8545-02826e41ec59.json and https://artists.proofprofile.net/proofs/artist/8f3b8193-1d69-403a-8545-02826e41ec59.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).