Park Ji-min (; born October 13, 1995), known mononymously as Jimin, is a South Korean singer, songwriter, and dancer. In 2013, he made his debut as a member of the South Korean boy band BTS, under the
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1c63dcfc4387cbaa184bf59c0cc0553472ccbc1203c7abdfac1e4a1021712da. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e32d413f-528f-4ffc-a0e4-45aa7a356175.json and https://artists.proofprofile.net/proofs/artist/e32d413f-528f-4ffc-a0e4-45aa7a356175.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).