K-otic (เค-โอติค) was a Thai pop boy band consisting of five members, two of whom are Thai Japanese and one who is Korean. The band debuted with the single, "Ya Wai Chai" in March 2007, releasing 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 0x32a23b16654e7de1388b8d506c0931875c25f0b2f6b57a229298cc81dacad710. Chain 2 (Bitcoin): anchored in block 953903 (2026-06-16T07:05:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/156bae90-4761-4757-a7d6-6e0f1d57a82a.json and https://artists.proofprofile.net/proofs/artist/156bae90-4761-4757-a7d6-6e0f1d57a82a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).