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 0xbb7beb4547f14b226a3dfd646c8f87017b4919db27833568e6d978238d19f55e. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cf74951f-8aa4-4f4b-8e32-121c10ce498e.json and https://artists.proofprofile.net/proofs/artist/cf74951f-8aa4-4f4b-8e32-121c10ce498e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
수고하고 무거운 짐 진 자들아 All You Who Labor and Are Heavy Laden
행복, 나눔, 우리 함께 걸어가요 Happiness, Share, Let's Walk Together
생활 속 거리두기 Song Song of Keeping Distance in Life