Jill is an English feminine given name, often a short form of the name Gillian or Jillian, which in turn originated as a Middle English variant of Juliana. Jill was such a common name that it had an e
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 0xf48f3d41f7caf63a59bea4e94ef97cc4de529395e092bd771a1ceeaea365450a. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a5d353dd-6d26-4f86-a376-83aa544a6322.json and https://artists.proofprofile.net/proofs/artist/a5d353dd-6d26-4f86-a376-83aa544a6322.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).