Al Kooper (born Alan Peter Kuperschmidt; February 5, 1944) is an American songwriter, record producer, and musician. Throughout much of the 1960s and 1970s he was a prolific studio musician, including
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 0x0fb20b8b070640f569dd80bc0dab6233677fc54dca54b42e2d37ca600ce2089e. 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/c8fce8be-a2fa-4783-a096-1e683e332852.json and https://artists.proofprofile.net/proofs/artist/c8fce8be-a2fa-4783-a096-1e683e332852.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Live Adventures of Mike Bloomfield and Al Kooper
Opening Speech One - Live at Bill Graham's Fillmore Auditorium, San Francisco, CA - September 1968
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 0x40377de00d163952d53fc4eecd484402a2f36842ebeeb59aac76d9e68d53e63b. 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/USSM16800112.
Sonny Boy Williamson - Live at Bill Graham's Fillmore Auditorium, San Francisco, CA - September 1968
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51604c9768901ae98bd5996531d1710c2ed2833a35b81e2f60a475e87aa3e7ee. Chain 2 (Bitcoin): anchored in block 959103 (2026-07-22T08:26:16Z), 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/USSM16800122.
The 59th Street Bridge Song (Feelin' Groovy) - Live at Bill Graham's Fillmore Auditorium, San Francisco, CA - September 1968
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff463c082e1c18d03d96b26f635573a6978f9ff24e50adb2c5c595de64883432. 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/USSM16800113.
I Wonder Who - Live at Bill Graham's Fillmore Auditorium, San Francisco, CA - September 1968
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b63b802da674326b9dcafdd6dae9bbb8c2e24f921d3df5228904daffd05ea24. 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/USSM16800114.
Her Holy Modal Highness - Live at Bill Graham's Fillmore Auditorium, San Francisco, CA - September 1968
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ba7ba409851028e4d7b377a16d91f04643e8e7fbc1898910b9e83846a81059d. 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/USSM16800115.
Dear Mr. Fantasy/Hey Jude - Live at Bill Graham's Fillmore Auditorium, San Francisco, CA - September 1968
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d31339c5a4dbdb2ba1372676aa257d496fab7a40a4c53ea948a778065343460. 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/USSM10211723.
The Weight - Live at Bill Graham's Fillmore Auditorium, San Francisco, CA - September 1968
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d9b8c53787bf99c35f2630242a739ae78d79df7fb2d2de6536d99b25531db65. 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/USSM16800116.
Don't Throw Your Love On Me So Strong - Live at Bill Graham's Fillmore Auditorium, San Francisco, CA - September 1968
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77c45870bbca307425d065dd6ad43ab9fb90a8307bfb8a2bffaa3861c9320f3a. 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/USSM16800125.
Mary Ann - Live at Bill Graham's Fillmore Auditorium, San Francisco, CA - September 1968
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4fe26935d8cc6d691eff40e0f3d0b19f2440723bfab73f0d715e7d2eb4940e6. 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/USSM16800117.
Together 'Til The End Of Time - Live at Bill Graham's Fillmore Auditorium, San Francisco, CA - September 1968
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a3b3306d7f6a7ebc692666a08a318d129fe430679727167d2e094c8ac9f8f23. 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/USSM16800118.
That's All Right - Live at Bill Graham's Fillmore Auditorium, San Francisco, CA - September 1968
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0068313d16545c96995c1f3eebf6713d4834ad0307dfa592557783fd68a90cc7. 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/USSM16800119.
Green Onions - Live at Bill Graham's Fillmore Auditorium, San Francisco, CA - September 1968
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89b158a50f409b1e32485c532325edf6580058d6697d680b604ab999782c3822. 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/USSM16800120.
Fillmore East: The Lost Concert Tapes 12/13/68
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1839c430ddc2505cf1bb93678ce0729d285ca61462ba56b4b6c9c70862f2f9e. 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/USSM10205158.
It's My Own Fault (feat. Johnny Winter) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44f429a1948a66ceebb8dd6ccb9227409e1f33d705c9a9c5f289fdee97fe28fe. 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/USSM10205160.
59th Street Bridge Song (Feelin' Groovy) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac753beb0cb0fbd5b073e981595c49835028559f6d7edf96ba38e051cb69f298. 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/USSM10205161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48245b4309e9fdbf55b52fe24bf9db1d8b7aacfb6c6f7208ab306a8b4253dcf4. 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/USSM10205162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x449f1b647a701bd66bec458095146f2d392defc64b13c67cb9437c7645d6412e. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/USSM10213539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a27ce8cadff94513146c79a196b95e16b59c09c53d7d80075bb50fafd589bd4. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/USSM10205164.
Don't Throw Your Love On Me So Strong - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x776be31d89006e572468265ee9f48bb52e7c0592d1f26f8990227799ec289e7c. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/USSM10205165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cc380afc9e04c005b7590bf13d0957e64cc0286e00412a853f08e3170fd737e. 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/USSM10205166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc390849647496119e55ddd56d2e1d767737e85a4c1150fe19392d1587ae615a5. 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/USSM10306010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6d68ebd49696a0f3b42b0dd7d6a725652f863555e40f28534c0388e8c486659. 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/USSM10306016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x042b53a0d0205cb46c8f71073c747d6505c11f3a97002ffeedecea9dde9ae83f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USSM10306018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94b7c9e4ed0d11df4f662938cde4a38012e91700ca38245b0e249997c06e7019. 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/USSM10306022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19816988b0deb77fe9beda7a5b5b859af2249b75ef866b0f241a2b1e61f5710e. 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/USSM10304228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82af1a975e531a24cedd64f42f43ed7293e27132589cff3c995763e70b3b5052. 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/USSM10304229.
Season of the Witch - 2002 Remix w/o Horns
Super Session (with Al Kooper & Stephen Stills)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8238a89d3401f57e27448d34911ce4eb7795a0a328cf4e08d9c7d3737ef383f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USSM10204837.