Eugene Chadbourne (born January 4, 1954) is an American banjoist, guitarist and music critic. Life and career thumb|right|260px| Chadbourne in Aarhus, Denmark, 2015 Chadbourne was born in Mount Verno
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 0x69637e569375ccff761f398009dd38ee217da119921becee41cbf667ad2e8bdc. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e48bdd18-f4e4-4b29-9c3b-670ef3d785e7.json and https://artists.proofprofile.net/proofs/artist/e48bdd18-f4e4-4b29-9c3b-670ef3d785e7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Aki Takase Plays Fats Waller at Babylon Berlin (Live, Berlin, 2009)
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 0xe52355a4aa026bfbb6deee5a4f233b9fda206d871056cd4152ff5148b28d8ba7. 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/USV351444616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c3cf15a031b762f7a4bc0ca0ecd9731dcee1bfc2f0c02b2f90ef334550b0e16. 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/USV351444625.
The Hired Hands: a Tribute to Bruce Langhorne
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x966a6ba2f56b267d2cf4470311452b106a4120a7fb107fdc91fd5f3b5bf86da7. 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/USQY51621725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15bf69045880013623299a632920eb2b368718cfe717a1d4c7620d18fbf3337d. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USQY51621729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89d9d133c6ca5062eda21fbcc48985eb9b888661c4f3c1da5e46c473d0911aed. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USQY51621730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc317cb90af72c785beeb7bf204252128dd6f714443c662d640883f3054de90ec. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USQY51621731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9c466aa2a25beebd8cda381f5f0f596614f34e152d2e128f454cc573508455b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USQY51621737.
Caged/Uncaged (A rock, experimental homage to John Cage)
G.O.I.N. "Get Out Of Iraq Now" (Featuring: Brian Ritchie, Brian Jackson, Victor DeLorenzo & Molly Chadbourne)
The History Of The Chadbournes: Honky-Tonk Im Nachtlokal
Jesse Helms Busted With Pornography - The C&W Opera By Eugene Chadbourne
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e83e4988723a6e3026a028f224b09f0ee20e387ff60852d09695ffcf796ce82. 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/USV291446840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45e96404e45129ebf3b77cc67fe80da5b5134f68ac37ce8d8fbf90e4d092fc9b. 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/CH2709398311.
Greeting Fellow Pickers: Guitar Festival Summer 1999
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf056ca12e1c53e9834f9082fe222282c3d3bffa73499f8208ee5de9d2ed2ef7. 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/USBTD0510041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50a61af4db18ef0dfff5f0fa84367f004a7ff8a2b75173bd274d714bde210db3. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USBTD0510048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13d4774b4bea32b83192ed9e06277cfe8ca88cef349745e26f2a7ea69caac462. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USV351444610.