Tirana ( , ; ) is the capital and largest city of Albania. It is located in the centre of the country, enclosed by mountains and hills, with Dajti rising to the east and a slight valley to the northwe
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0207070b3c0af5c4e4ae65faaddd39a8c2dcb2de023df7c33d31cd8159b6c269. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8fec0e11-0047-4b4d-ae2b-0b039a02e1dd.json and https://artists.proofprofile.net/proofs/artist/8fec0e11-0047-4b4d-ae2b-0b039a02e1dd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).