Alma or ALMA may refer to: Arts and entertainment Alma (film), a 2009 Spanish short animated film Alma, an upcoming film by Sally Potter Alma (Oswald de Andrade novel), 1922 Alma (Le Clézio nove
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 0x80c6472dd803d599beaa00bd6802860b0c322b27999bf5c8d3c65524245cc2eb. 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/619ee329-5c88-480b-90ad-7c99bed8c44a.json and https://artists.proofprofile.net/proofs/artist/619ee329-5c88-480b-90ad-7c99bed8c44a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).