thumb|Eduard Romanyuta 2015 Eduard Eduardovych Romanyuta (; born 23 October 1992) is a Ukrainian singer. He represented Moldova in the Eurovision Song Contest 2015 with his song "I Want Your Love", w
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 0x7c3e165b008c98df38a93348f54352241a733d7186e4ea41365aaab63e8d3ae6. Chain 2 (Bitcoin): anchored in block 953674 (2026-06-14T19:07:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5ae8825c-6abf-4281-b52e-a0e8d8946805.json and https://artists.proofprofile.net/proofs/artist/5ae8825c-6abf-4281-b52e-a0e8d8946805.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
I Want Your Love (Eurovision 2015 - Moldova)