Soda or SODA may refer to: Soft drink, a sweetened, carbonated, and usually flavored drink Chemistry Some chemical compounds containing sodium Sodium carbonate, washing soda or soda ash Sodium
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 0x2f4e98e9b5f8304758c914085c69035fdf519a6a6e07bbe03c3e47027d3544f8. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/98ea5f0b-d18e-4e0c-8bf9-813551dc56ac.json and https://artists.proofprofile.net/proofs/artist/98ea5f0b-d18e-4e0c-8bf9-813551dc56ac.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).