The Wakin (和金 lit. "Japanese Golden") is an intermediate twin tailed goldfish variety that has been originated from Japan. It is believed the wakin gave rise to fancy twin-tailed goldfish, including t
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 0xc1c0fcbaa6b24a0d0d990ba58a4832fd66b045f3bfdb514a77c07c707a4cbbba. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/eaed085a-a958-4547-b489-2597ac1f7a26.json and https://artists.proofprofile.net/proofs/artist/eaed085a-a958-4547-b489-2597ac1f7a26.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).