Leilani "Lani" Hall (born November 6, 1945) is an American singer. From 1966 to 1971, she performed as lead vocalist for Sérgio Mendes & Brasil '66. In 1972, Hall released her first solo album, Sun Do
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 0xad38dfd7133ff266ee03f3231c137018358acae5ada4f2a5410c92e90b0e7693. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/58f9e3ba-979c-48b8-83f3-402b31146363.json and https://artists.proofprofile.net/proofs/artist/58f9e3ba-979c-48b8-83f3-402b31146363.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).