Haeun can refer to: Haeun (Jeungsando), a principle of the Jeungsando faith. Ch'oe Ch'i-wŏn, a Silla philosopher sometimes known by his pen name Haeun Haeundae-gu, Busan Kim Hae-woon (born 1973), Sou
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 0x45963812de786fb37dd218160c9d1991033fe4066a93adf03ea160558a241ec7. Chain 2 (Bitcoin): anchored in block 954008 (2026-06-16T21:31:27Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/33df54f1-cbce-473c-b3fa-67de02f5e1af.json and https://artists.proofprofile.net/proofs/artist/33df54f1-cbce-473c-b3fa-67de02f5e1af.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Desire And Hope (Original Soundtrack from the Webtoon The Siren : Becoming the Villain's Family)