Hamu is a surname and given name. Notable people with the name include: Ana Hamu (died 1848), Māori woman Bruna Hamú (born 1990), Brazilian actress and model Hamu Kayondo (born 1990), Ugandan cric
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 0x97bb06be1318659a0c4290a1c46b445b08ac62747db3ffa33d378806d29599a5. Chain 2 (Bitcoin): anchored in block 954513 (2026-06-20T06:31:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9f24ccb0-4035-4e0a-bc7a-b6e4280e0005.json and https://artists.proofprofile.net/proofs/artist/9f24ccb0-4035-4e0a-bc7a-b6e4280e0005.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).