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 0x182d6e748cc9819a60a32c1ed454702df6d5f5a23b56e64df49a3cb9b9e7a957. Chain 2 (Bitcoin): anchored in block 954659 (2026-06-21T06:14:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dd37c927-650e-4e7e-bd23-1c31e3b2b4cf.json and https://artists.proofprofile.net/proofs/artist/dd37c927-650e-4e7e-bd23-1c31e3b2b4cf.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Zemra n'Dardani V6 (Das Herz in Dardania) [Version 6]
Zemra n'Dardani V5 (Das Herz in Dardania) [Version 5]
Zemra n'Dardani V4 (Das Herz in Dardania) [Version 4]
Zemra n'Dardani V3 (Das Herz in Dardania) [Version 3]
Zemra n'Dardani V2 (Das Herz in Dardania) [Version 2]
Zemra Shqiptare V2 (Das albanische Herz) [Version 2]
Pranvera në Dardani (Frühling in Dardanien)
Flamuri valon V3 (Die Flagge weht) [Version 3]
Flamuri valon V2 (Die Flagge weht) [Version 2]