Xlov (; stylized in all caps) is a South Korean musical group formed by 257 Entertainment and managed by WM Entertainment after the company acquired 257 Entertainment in March 2026. The group consists
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 0x2c15864cbd927c4c9f492c74943ab83d335f0bc7c3033772f1c0a8b84dea8290. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0064a78a-7cb8-4781-85aa-f8a9b7495924.json and https://artists.proofprofile.net/proofs/artist/0064a78a-7cb8-4781-85aa-f8a9b7495924.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).