Tidal is the adjectival form of tide. Tidal may also refer to: Tidal (album), a 1996 album by Fiona Apple Tidal (king), a king involved in the Battle of the Vale of Siddim TidalCycles, a live codi
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 0x096fa4c80b030236c572ba12286bd2121093586568143faa595faefb1701ee8a. Chain 2 (Bitcoin): anchored in block 953907 (2026-06-16T07:39:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/16b09f00-6ebe-4d18-9f3f-8b6539a14a72.json and https://artists.proofprofile.net/proofs/artist/16b09f00-6ebe-4d18-9f3f-8b6539a14a72.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).