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 0xe47e72abe195be398217a70bfeee9ec0d17ada4dd16bf382fcb2986f7bbbca3c. Chain 2 (Bitcoin): anchored in block 954638 (2026-06-21T03:45:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d467ab95-8035-45cf-aa6c-b2cf2f175ed1.json and https://artists.proofprofile.net/proofs/artist/d467ab95-8035-45cf-aa6c-b2cf2f175ed1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Without Hope I Hope (Instrumental version)
I Don't Change Myself (Instrumental version)
Ой сивая зозуленька (Instrumental Version)
What Child Is This? (Piano Improvisation Version)