No Filter may refer to: Music No Filter Tour, Rolling Stones 2017 No Filter tour, 2014 concert tour by Danity Kane No Filter (Lil Wyte and JellyRoll album) No Filter (Json album) No Filter 2, Li
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 0x10c4c883c84935fcd61b4d77fb2f33d2e8a84612bb63f5b91dd565d368af5bf1. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/634229a7-e0bb-43b1-bfe7-ea2cec488b85.json and https://artists.proofprofile.net/proofs/artist/634229a7-e0bb-43b1-bfe7-ea2cec488b85.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).