Xavier or Xabier may refer to: People Xavier (surname) Xavier (given name) Francis Xavier (1506–1552), Catholic saint St. Francis Xavier (disambiguation) St. Xavier (disambiguation) Xavier (foo
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 0xdf03ab0f0262d9d11c8b718609827188a706a3470083f038e442d2f2abc9225a. 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/c14aa584-7a2c-4b70-8d1a-37c4c371bc5d.json and https://artists.proofprofile.net/proofs/artist/c14aa584-7a2c-4b70-8d1a-37c4c371bc5d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).