Maryang is located in Gangjin county, South Jeolla province, South Korea. It is one of ten myeon in Gangjin county, and it is notable for commercial and recreational fishing. Maryang was designated
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 0xecc19f49bf6977c1185a053aa53f0e990bfb7b14938a09d8ab65bd5d26fbe6dd. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4558730d-ba5f-41c5-8ad7-b82145273b3a.json and https://artists.proofprofile.net/proofs/artist/4558730d-ba5f-41c5-8ad7-b82145273b3a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).