1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 artist was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x305d014b08ced9e7a62ca49854c470ad8450cc043fc3e07e20f5a02c8dffc4f6. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/852f3fa5-6d12-42f5-8ab4-b9848543ce90.json and https://artists.proofprofile.net/proofs/artist/852f3fa5-6d12-42f5-8ab4-b9848543ce90.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The lovely song when we parted (Feat. Sojung of LADIES' CODE)
The lovely song when we parted (Inst.) (Instrumental)
Confession (With Yu SeungWoo, Jeong Sewoon)
Welcome to Waikiki Pt.4(Original Television Soundtrack)
Welcome to Waikiki, Pt. 4 (Original Television Soundtrack)
Welcome to Waikiki, Pt. 4 (Music from the Original TV Series)
If Winter Comes (Puzzle - The Last Piece)
Summer Night Story (Feat. OuiOui, PLUMA)