Jorma Ludwik Kaukonen Jr. (; ; born December 23, 1940) is an American blues, folk, and rock guitarist. Kaukonen performed with Jefferson Airplane, and still performs regularly on tour with Hot Tuna, w
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 0xeb9f97f1b4186ccb42857d98c534426b186d9ef63d28ef166cff05116b6b3d82. 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/f47c4f71-89de-437a-a334-5ecda21abfe7.json and https://artists.proofprofile.net/proofs/artist/f47c4f71-89de-437a-a334-5ecda21abfe7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Live at Rockpalast 1980 (Live, Dortmund, 1980)
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 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 0x9216c09caf617858654d97dffc8bd5ee5461a7cfbc5e4dc1d2784564b6db302c. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/USRC17308468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50a94df98191d477973249099f1c8f50132a29e34689559548af751c6b86f2f8. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USSM10202902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd905e99a0788b1dd1f8e4ac827ca052008496f95bd74ab3aad2dde3712f58eb1. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USSM10202901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c0fdddf25ebb038b760ace98ac0d5aba9a861f1fd57af7e73c36fec49ba3ef6. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USSM10202903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2333839ad169e0126bf54969ac2e2e571ff272211b7a7576850d4d75243f6e5b. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/USSM10202904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x753b1202c7b16b471be8083470486e7c7e20cbb240f60c8d5427692cd84c3694. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USRC17308550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x637b2c8e308f3d96ca369422a2cce6ce07f3fc595f4c397331add7704fef6f29. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/USRC17308546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc35324c3735d86a55ae2e55a24ea623bb04645381bdc755f383ca90bf2dee2c3. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/USRC17308547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5ec00086f4c7e8a8d44ec619c5a7fa930cb024fe1403b3204765cc3ccbc3935. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/USRC17407786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9535fcaae849ec6c54367d55fb6b44bb4f2739d61a712ba271ed527d5a2b27ba. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USRC17308551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7ed166c2a7c831d1850c69b721d9e63f8d34647e4b3199e69403fd1e576ffc2. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USRC17407788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49aa7649759963b1de332c822c223c29c51508fa1f719bf5e15d9eb7b90e6758. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/USRC10201690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3139dada6ef77e227c1931f2a0f62512289a0a6cea895c8fc5294e3af7d9e033. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/USRHR0720206.
1995-12-20 Sweetwater Saloon, Mill Valley, CA
2002-2006 Merkin Concert Hall, New York City, NY Vol. 01
2003-02-02 Skipper's Smokehouse, Tampa, FL
2003-04-05 Fur Peace Station, Darwin, OH
2004-05-26 Iron Horse Music Hall, Northampton, MA
2003-01-24 The Birchmere, Alexandria, VA
2003-08-08 The Bottom Line, New York City, NY
2004-05-29 The Birchmere, Alexandria, VA
2005 & 2008 Fur Peace Station, Darwin, OH (Live)
2007-01-19 The Turning Point, Piermont, NY
2007-01-20 The Turning Point, Piermont, NY
2006-02-24 The Grand Opera House, Wilmington, DE
2007-05-03 Patriots Theater At The War Memorial, Trenton, NJ (Live)
2007-02-09 Appel Farm Arts & Music Center, Elmer, NJ
2007-02-08 Mexicali Blues Cafe, Teaneck, NJ
2007-02-11 Sinai Free Synagogue, Mt. Vernon, NY
2007-09-22 Fur Peace Station, Darwin, OH
2008-04-03 Patriots Theater At The War Memorial, Trenton, NJ
2008-11-23 At The Tabernacle, Mt. Tabor, NJ
2008-11-21 At The Tabernacle, Mt. Tabor, NJ
2009-03-20 Watercolor Cafe, Larchmont, NY
2009-03-18 On Patriots Theater At The War Memorial, Trenton, NJ
2010-05-16 The Iron Horse Music Hall, Northampton, MA
2010-02-20 McCabe’s Guitar Shop, Santa Monica, CA
2010-03-20 YMCA Boulton Center for the Performing Arts, Bay Shore, NY
2010-02-19 McCabe's Guitar Shop, Santa Monica, CA
2000-03-06 Rams Head On Stage, Annapolis, MD
2002-06-23 The Fillmore, San Francisco, CA
2006-05-13 Bearsville Theater, Woodstock, NY
2003-02-11 Dave's On Dickson, Fayetteville, AR
2011-11-06 Iron Horse Music Hall, Northampton, MA
2011-11-04 Narrows Center for the Arts, Fall River, MA
2003-07-11 The Red Mill Museum, Clinton, NJ
2007-02-23 Cedar Cultural Center, Minneapolis, MN
2003-02-13 Barrelhouse Brewing Company, Cincinnati, OH (Live)
2000-02-17 Variety Playhouse, Atlanta, GA (Live)
Solo: 2007, 2008, 2010 At the Fur Peace Station, Darwin, Oh (Live)
2003-07-10 Blues Cruise, New York, NY (Live)
2008-01-25 Y.M.C.A. Boulton Center for the Performing Arts, Bay Shore, NY (Live)
1999-03-24 Jannus Landing, St. Petersburg, FL (Live)
2000-03-15 Barrel House Brewing Company, Cincinnati, Oh (Live)
1978-03-24 Rancho Nicasio, Nicasio, CA (Live)
2002-01-28 Turning Point, Piermont, NY (Live)
2009-11-06 Kent State Folk Festival, The Kent Stage, Kent, Oh & 2004-06-17 Town Park, Telluride, Co (Live)
2011-09-17 Presbyterian Church, Chatham, Nj (Live)
2002-01-29 the Turning Point, Piermont, NY (Live)
2012-09-15 the Stephen Talkhouse, Amagansett, NY (Live)
2013-02-01 Mccabe's Guitar Shop, Santa Monica, CA (Live)
2013-05-31 City Winery, New York City, NY (Live)
1998-10-16 Casa Cantina, Athens, OH (Live)
2010-08-01 Nofo Rock and Folk Fest, Cutchogue, NY (Live)
2013-05-30 Outpost in the Burbs, Montclair, NJ (Live)
2003-08-09 the Bottom Line, New York City, NY (Live)
2014-03-07 Breezes Grand Resort , Negril, Jamaica & 1996-03-12 Rockefellers, Houston, Tx & Select Tracks from 2002-07-20 Shelburne Museum, Shelburne, VT (Live)
2014-03-28 ﻿﻿﻿﻿﻿towne Crier Cafe, Beacon, NY (Live)
2014-03-30 Suffolk Theater, Riverhead, NY (Live)
2002-07-14 the Turning Point, Piermont, NY (Live)
1979-02-25 Paradise Theatre, Boston, Ma (Live)
2014-08-29 Stephen Talkhouse, Amagansett, NY (Live)
2000-02-19 Carrboro Center for the Arts, Carrboro, Nc (Live)
1978-05-20 Capitol Theatre, Passaic, Nj (Live)
2013-02-05 Sweetwater Music Hall, Mill Valley, CA (Live)
2015-03-15 Boulton Center for the Performing Arts, Bay Shore, NY (Live)
2015-03-14 Stage One, Fairfield, Ct (Live)
2015-03-13 Infinity Hall, Hartford, Ct (Live)
2015-05-16 Towne Crier, Beacon, NY (Live)
2015-02-14 Mccabe's Guitar Shop, Santa Monica, Ca (Live)
2015-10-23 Emelin Theatre, Mamaroneck, NY (Live)
2015-10-22 Iron Horse Music Hall, Northampton, Ma (Live)
2006-01-20 the Turning Point, Piermont, NY (Live)
2016-02-11 Sweetwater Music Hall, Mill Valley, Ca (Live)
2016-03-06 the Greenwich Odeum, East Greenwich, Ri
2016-03-10 Landmark on Main Street, Port Washington, NY (Live)
2016-03-05 Infinity Music Hall, Hartford, Ct (Live)
2000-03-26 Flint Public Library, Flint, MI (Live)
2016-06-04 City Winery, New York, NY (Live)
2016-06-26 Rockland-Bergen Music Festival, Tappan, NY (Live)
2015-08-09 The Funky Biscuit, Boca Raton, FL (Live)
2016-12-07 Infinity Hall, Norfolk, CT (Live)
2015-02-15 Mccabe's Guitar Shop, Santa Monica, Ca (Live)
2017-04-13 the Space at Westbury Theater, Westbury, NY (Live)
2004-05-21 Stephen Talkhouse Amagansett NY
2018-03-09 Suffolk Theater, Riverhead, NY (Live)
2017-11-24 at the Tabernacle, Mt Tabor, NJ (Live)
1964 Cabale Creamery, Berkeley, CA (Live)
1997-05-24 Birch Hill, Old Bridge, NJ (Live)
2018-08-01 New Hope Winery, New Hope, PA (Live)
2018-10-03 Ymca Boulton Center for the Performing Arts, Bay Shore, NY (Live)
2018-10-04 Greenwich Odeum, East Greenwich, RI (Live)
2018-10-05 City Winery, New York, NY (Live)
2008-04-26 Merlefest, Wilkes Community College, Wilkesboro, NC (Live)
Bear's Sonic Journals: Before We Were Them
2019-03-08 Sweetwater Music Hall, Mill Valley, CA (Live)
2019-03-02 Mccabe's Guitar Shop, Santa Monica, Ca (Live)
2019-03-03 Mccabe's Guitar Shop, Santa Monica, CA (Live)
2012-11-18 20th Century Theater, Cincinnati, Oh
2004-12-12 Holiday Faire, Fur Peace Station, Darwin, Oh
1992-03-14 Another Fools Cafe, Athens, Oh
2004-05-23 Helen Hayes Theatre, Nyack, NY
2008-01-27 Ringwood Public Library, Ringwood, Nj
2013-01-26 Musical Instrument Museum, Phoenix, Az
2008-01-19 Sinai Free Synagogue, Mt. Vernon, NY
2009-06-27 the Stephen Talkhouse, Amagansett, NY
2000-07-05 Great American Music Hall, San Francisco, CA (Live)
2008-04-06 Watercolor Cafe, Larchmont, NY (Live)
2020-09-20 Concerts in the Garden at the Blu Grotto, Monmouth Park, Oceanport, Nj (Live)
2020-09-21 Concerts in the Garden at the Blu Grotto, Monmouth Park, Oceanport, Nj (Live)
2020-10-24 Ridgefield Playhouse, Ridgefield, CT (Live)
1993-05-29 the Stone Pony, Asbury Park, Nj (Live)
2020-12-13 the Vogel, Red Bank, NJ (Live)
2004-08-21 the Guitarbeque, Asbury Park, Nj (Live)
2021-04-21 City Winery, New York, NY (Live)
2021-04-22 City Winery, New York, NY (Live)
2019-03-03 Mccabe's Guitar Shop, Santa Monica, Ca (Live)
2021-07-25 City Winery, Montgomery, NY (Live)
2021-07-23 Concerts on the Green, Suneagles Golf Club, Eatontown, Nj (Live)
2012-09-13 Stage One, Fairfield, Ct (Live)
2007-05-04 Seabury Center, Westport, Ct (Live)
1987-04-29 the Birchmere, Alexandria, Va (Live)
2002-06-14 the Painted Bride, Philadelphia, Pa (Live)
1989-03-25 Uncle Willy's, Kingston, NY (Live)
2002-06-13 the Bottom Line, New York, NY Late Show (Live)
1999-04-03 the Stephen Talkhouse, Amagansett, NY (Live)
1992-06-03 the Birchmere, Alexandria, Va (Live)
2023-03-03 Sugar Loaf Performing Arts Center, Chester, NY (Live)
2023-06-10 Old Whaling Church, Edgartown, MA (Live)
2023-06-22 Narrows Center for the Arts, Fall River, MA (Live)
2003-01-17 I.M.A.C., Huntington. NY (Live)
2009-03-06 Washington Center for the Performing Arts, Olympia, Wa
2000-03-09 Gullifty's Underground, Camp Hill, PA (Live)
2024-05-08 Stoughton Opera House, Stoughton, WI (Live)
2024-08-21 The Narrows Center For The Arts, Fall River, MA (Live)
2002-07-21 Meadowbrook Farm Musical Arts Center, Gilford, NH (Live)
Reno Road: Unreleased tracks from the '60's
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fa0783354dd7153789e9efee7adc65e870d6eeb657c538fdd4901fc1e87cbe2. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T13:22:35Z), 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/QZ5FN2571460.
2003-01-31 The Orange Peel, Asheville, NC (Live)
2008-02-06 Merkin Concert Hall, New York, NY (Live)
2012-11-15 Bell's Eccentric Cafe, Kalamazoo, MI (Live)
Link of Chain - A Songwriters Tribute to Chris Smither
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb41fb14c2798eca3a95019f73fa18a4b5e95d7e5d04f8e89fb9a501d0d7f3ee3. 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/USFMT1406807.
Dear Jerry: Celebrating The Music Of Jerry Garcia (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba1e5b3ba508ba9aa70764a0866c9315c08aca50cf4c5fd7e6fff0ecd8accc46. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USRO21600755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x346ccd62ec7211f736f50cf4bdd6e8a0cbdd37986842001e4d35462315c64c12. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USRO21600770.