thumb|Johnson in 2016 Kirsten Johnson (born 1965) is an American documentary filmmaker and cinematographer. She is mostly known for her camera work on several well-known feature-length documentaries
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 0xd777af9664a876858732139244d1681bf8dad5ea839b6aeaba7921e185087e57. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b3ad00dd-2869-44d8-8e6e-34dcfe6bdc74.json and https://artists.proofprofile.net/proofs/artist/b3ad00dd-2869-44d8-8e6e-34dcfe6bdc74.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Goetz: Lose Blätter, Op. 7, Genrebilder, Op. 13 - Schulz-Beuthen: Alhambra Sonata, Op. 34
Zadeja: Toccata - Ibrahimi: Dance - Harapi: Sonatina - Komnino: Polyphonic Song - Daija: Waltz - Paparisto: Scherzo - Sokoli: Alpanian Rhapsody
Piano Music By Amy Beach Vol. 2, The Turn Of The Century