GWSN (), also known as Girls in the Park, was a South Korean girl group formed in 2018 by Kiwi Pop (now known as The Wave Music). The group consisted of seven members: Miya, Seokyoung, Seoryoung, Anne
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 0x62092be723fcae21a36c7a57070aa911bf641c60c6b6deaa724d2ffb2edbc416. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/30cabc36-25c4-4f27-9c3b-1aa6d8a845cb.json and https://artists.proofprofile.net/proofs/artist/30cabc36-25c4-4f27-9c3b-1aa6d8a845cb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Clean With Passion For Now, Pt. 2 (Original Television Soundtrack)