Souma may refer to: Soumâa, Boumerdès, a village in Boumerdès Province, Algeria Soumâa, Blida, a town in Blida Province, Algeria Soma (drink), a Vedic ritual ambrosia drink See also Soumya, an I
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 0x02cb642515c1a8eabf74fa077698082df1ee64f0bed3c07e9f997f2ecf4ede5c. Chain 2 (Bitcoin): anchored in block 953620 (2026-06-14T09:36:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1ceb95b1-429b-44c3-8f96-a398a6c10e92.json and https://artists.proofprofile.net/proofs/artist/1ceb95b1-429b-44c3-8f96-a398a6c10e92.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).