Ibra () is the second largest city in the Ash Sharqiyah Region of Oman. It is located about 170 km (2 hours) from Muscat and has a population estimated at 55,000 people. Ibra is one of the oldest citi
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 artist was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa90e0dbbfe86791fcc4a9acb1c54baad0fc40a85a5c668a200022ab1d8e97a4. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c57bf3c3-bc21-40c5-b5ce-f5310da21d8c.json and https://artists.proofprofile.net/proofs/artist/c57bf3c3-bc21-40c5-b5ce-f5310da21d8c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).