Iced may refer to: Iced (film), a 1988 American slasher film Iced, a 1993 novel by American author and actor Ray Shell "Iced" (CSI), a television episode Iced (toolkit), a cross-platform GUI tool
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 0xf7ca084098be15b8c9027a7e909d4c2aec306add6cbc281c09af4387bcfc8ca2. Chain 2 (Bitcoin): anchored in block 954031 (2026-06-17T01:43:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3a7f0482-879f-4042-9c48-08a53d3ffd51.json and https://artists.proofprofile.net/proofs/artist/3a7f0482-879f-4042-9c48-08a53d3ffd51.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).