AER or Aer may refer to: Arts and media Music Aer (band), a hip-hop band Aer (album), an album by Swiss pianist and composer Nik Bärtsch's band Mobile Publications All England Law Reports, coveri
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 0x02710ff2905a7aea38d114d0fd996ac6d8949bb4f933689a30a92b97c00f77c4. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8adbdd1a-db95-425e-94e7-4b75d1407d61.json and https://artists.proofprofile.net/proofs/artist/8adbdd1a-db95-425e-94e7-4b75d1407d61.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).