Amanda Harberg (born 1973) is an American composer and pianist of classical music whose work has been performed internationally. She is currently on the composition faculty at the Berklee College of M
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4830039393a38eddfad5b6f6b29137fb2a28537e66ce7c9c12823ac1d2ede3b. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/efdf476c-0497-49be-aa4d-da3eceeea797.json and https://artists.proofprofile.net/proofs/artist/efdf476c-0497-49be-aa4d-da3eceeea797.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Amanda Harberg: Lucas's Garden [For Clarinet, Violin, Cello and Piano] (Live)