Perm or PERM may refer to: Places Perm, Russia, a city in Russia Permsky District, the district Perm Krai, a federal subject of Russia since 2005 Perm Oblast, a former federal subject of Russia 1938–
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 0x2b7538d0325130ca0ab557176a7f9ec12f0a218186d95d0d1c8f0760b1cdbb49. 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/62e311b9-bd23-4b53-b5ec-6e9ab10f6323.json and https://artists.proofprofile.net/proofs/artist/62e311b9-bd23-4b53-b5ec-6e9ab10f6323.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).