TBZ, tbz, or TbZ can refer to: A computer file, the result of tar and bzip2 operations. Tetrabenazine, a drug Thiabendazole, a parasiticide Tabriz International Airport Tahnoun bin Zayed Al Nahyan (n
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 0x0a44032ea16c81a094504028d9ad5eec5e51a59c59e8e3b624e8eb3a85f982f5. Chain 2 (Bitcoin): anchored in block 954569 (2026-06-20T14:36:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b1ec56e5-506e-46de-886c-5585c21ba61e.json and https://artists.proofprofile.net/proofs/artist/b1ec56e5-506e-46de-886c-5585c21ba61e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).