John Harris Harbison (born December 20, 1938) is an American composer and academic. Life John Harris Harbison was born on December 20, 1938, in Orange, New Jersey, to the historian Elmore Harris Harb
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 0x8662b8ca76b728ac12e04e0f6c751d6bfbd8109201cb8da2d9fa69a3954fec03. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5ca4307f-a4a7-4580-b201-b2a7c5ec3374.json and https://artists.proofprofile.net/proofs/artist/5ca4307f-a4a7-4580-b201-b2a7c5ec3374.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Emerson String Quartet – The String Quartet Revealed
String Quartet No. 12 in F Major, Op. 96, B. 179 "American": IV. Finale. Vivace ma non troppo
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98f61e7d8914d2f461f9caf8ed0fecee3170d888ae150b60ea60b36a66ffdc65. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058403001.
Harbison: Quintet; Rochberg: Slow Fires of Autumn
John Harbison: Simple Daylight; Words From Paterson
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebe97d87abfa1bfc2e2ac6c8e3675767b30a70ae614f0a0ae30bc5252bd90750. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USNO18918701.
Harbison: Piano Trios / Gatsby Etudes / The Violist's Notebook / 10 Micro-Waltzes
John Harbison: Concertos for String Instruments
Charles Dodge: Cascando & John Harbison: Full Moon in March
Double Concerto, "To the Memory of Roman Totenberg"/I. Affetuoso, poco inquieto
John Harbison: String Trio - Four Songs of Solitude - Songs America Loves to Sing
Harbison: Four Songs of Solitude / Variations / Twilight Music
Under The Sun: Finger Guitar And Roadhouse Piano
Black Swan (after Brahms' 6 Piano Pieces, Op. 118: No. 2. Intermezzo in A Major)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a7dadd8033cdb0fec1ddc868620140ac53910efa4c096c98644a8ce7c099f3a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191068402.
Barber: Summer Music - Beach: Pastorale and Other American Works
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x002da5d0c124b6d60fd362404c47743b45d87e811d148afd4608cf8f0fcb0802. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLWD9306501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a872d1dc927d52f8689d7eb954725662dce117ee4c6cedaeba16215898936dd. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLWD9306515.