1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x0fb20b8b070640f569dd80bc0dab6233677fc54dca54b42e2d37ca600ce2089e. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). 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
{"copyright_id":"0x40377de00d163952d53fc4eecd484402a2f36842ebeeb59aac76d9e68d53e63b","isrc":"USSM16800112","name":"Opening Speech One - Live at Bill Graham's Fillmore Auditorium, San Francisco, CA - September 1968","registered_at":"2026-06-25T22:46:49Z","spotify_id":"47z4vpIkSB6sqC7Wj7EF6J","type":"track"}
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40377de00d163952d53fc4eecd484402a2f36842ebeeb59aac76d9e68d53e63b. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/47z4vpIkSB6sqC7Wj7EF6J.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/47z4vpIkSB6sqC7Wj7EF6J.
Opening Speech Two - Live at Bill Graham's Fillmore Auditorium, San Francisco, CA - September 1968
Sonny Boy Williamson - Live at Bill Graham's Fillmore Auditorium, San Francisco, CA - September 1968
The 59th Street Bridge Song (Feelin' Groovy) - Live at Bill Graham's Fillmore Auditorium, San Francisco, CA - September 1968
{"copyright_id":"0xff463c082e1c18d03d96b26f635573a6978f9ff24e50adb2c5c595de64883432","isrc":"USSM16800113","name":"The 59th Street Bridge Song (Feelin' Groovy) - Live at Bill Graham's Fillmore Auditorium, San Francisco, CA - September 1968","registered_at":"2026-06-18T17:19:42Z","spotify_id":"1AHOErDlIKj2Qk0d7BtTgN","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff463c082e1c18d03d96b26f635573a6978f9ff24e50adb2c5c595de64883432. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1AHOErDlIKj2Qk0d7BtTgN.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1AHOErDlIKj2Qk0d7BtTgN.
I Wonder Who - Live at Bill Graham's Fillmore Auditorium, San Francisco, CA - September 1968
{"copyright_id":"0x9b63b802da674326b9dcafdd6dae9bbb8c2e24f921d3df5228904daffd05ea24","isrc":"USSM16800114","name":"I Wonder Who - Live at Bill Graham's Fillmore Auditorium, San Francisco, CA - September 1968","registered_at":"2026-06-20T07:38:38Z","spotify_id":"5i8VtEaiM2mvKxYdNVRDYz","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b63b802da674326b9dcafdd6dae9bbb8c2e24f921d3df5228904daffd05ea24. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5i8VtEaiM2mvKxYdNVRDYz.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5i8VtEaiM2mvKxYdNVRDYz.
No More Lonely Nights - Live at Bill Graham's Fillmore Auditorium, San Francisco, CA - September 1968
Her Holy Modal Highness - Live at Bill Graham's Fillmore Auditorium, San Francisco, CA - September 1968
{"copyright_id":"0x7ba7ba409851028e4d7b377a16d91f04643e8e7fbc1898910b9e83846a81059d","isrc":"USSM16800115","name":"Her Holy Modal Highness - Live at Bill Graham's Fillmore Auditorium, San Francisco, CA - September 1968","registered_at":"2026-06-25T22:56:13Z","spotify_id":"2ngLDtEvEqZCZf3IVpuM7Z","type":"track"}
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. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2ngLDtEvEqZCZf3IVpuM7Z.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2ngLDtEvEqZCZf3IVpuM7Z.
Dear Mr. Fantasy/Hey Jude - Live at Bill Graham's Fillmore Auditorium, San Francisco, CA - September 1968
{"copyright_id":"0x1d31339c5a4dbdb2ba1372676aa257d496fab7a40a4c53ea948a778065343460","isrc":"USSM10211723","name":"Dear Mr. Fantasy/Hey Jude - Live at Bill Graham's Fillmore Auditorium, San Francisco, CA - September 1968","registered_at":"2026-06-22T03:21:26Z","spotify_id":"7lEqGfN3tCaCulCO5rQjaS","type":"track"}
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. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7lEqGfN3tCaCulCO5rQjaS.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7lEqGfN3tCaCulCO5rQjaS.
The Weight - Live at Bill Graham's Fillmore Auditorium, San Francisco, CA - September 1968
{"copyright_id":"0x2d9b8c53787bf99c35f2630242a739ae78d79df7fb2d2de6536d99b25531db65","isrc":"USSM16800116","name":"The Weight - Live at Bill Graham's Fillmore Auditorium, San Francisco, CA - September 1968","registered_at":"2026-06-18T16:37:05Z","spotify_id":"5vDgcpTUOfBTB1VEhL8LOY","type":"track"}
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. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5vDgcpTUOfBTB1VEhL8LOY.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5vDgcpTUOfBTB1VEhL8LOY.
Don't Throw Your Love On Me So Strong - Live at Bill Graham's Fillmore Auditorium, San Francisco, CA - September 1968
{"copyright_id":"0x77c45870bbca307425d065dd6ad43ab9fb90a8307bfb8a2bffaa3861c9320f3a","isrc":"USSM16800125","name":"Don't Throw Your Love On Me So Strong - Live at Bill Graham's Fillmore Auditorium, San Francisco, CA - September 1968","registered_at":"2026-06-27T05:43:30Z","spotify_id":"2hPQx85jQRPhEoQGD1E8l2","type":"track"}
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. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2hPQx85jQRPhEoQGD1E8l2.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2hPQx85jQRPhEoQGD1E8l2.
Mary Ann - Live at Bill Graham's Fillmore Auditorium, San Francisco, CA - September 1968
{"copyright_id":"0xb4fe26935d8cc6d691eff40e0f3d0b19f2440723bfab73f0d715e7d2eb4940e6","isrc":"USSM16800117","name":"Mary Ann - Live at Bill Graham's Fillmore Auditorium, San Francisco, CA - September 1968","registered_at":"2026-06-20T09:11:20Z","spotify_id":"0NgdiqgiWvzbwfoQpdfVfb","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4fe26935d8cc6d691eff40e0f3d0b19f2440723bfab73f0d715e7d2eb4940e6. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0NgdiqgiWvzbwfoQpdfVfb.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0NgdiqgiWvzbwfoQpdfVfb.
Finale/ Refugee - Live at Bill Graham's Fillmore Auditorium, San Francisco, CA - September 1968
Together 'Til The End Of Time - Live at Bill Graham's Fillmore Auditorium, San Francisco, CA - September 1968
{"copyright_id":"0x6a3b3306d7f6a7ebc692666a08a318d129fe430679727167d2e094c8ac9f8f23","isrc":"USSM16800118","name":"Together 'Til The End Of Time - Live at Bill Graham's Fillmore Auditorium, San Francisco, CA - September 1968","registered_at":"2026-06-27T05:41:44Z","spotify_id":"5upnw7kWS9h52beiGbt2EU","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a3b3306d7f6a7ebc692666a08a318d129fe430679727167d2e094c8ac9f8f23. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5upnw7kWS9h52beiGbt2EU.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5upnw7kWS9h52beiGbt2EU.
That's All Right - Live at Bill Graham's Fillmore Auditorium, San Francisco, CA - September 1968
{"copyright_id":"0x0068313d16545c96995c1f3eebf6713d4834ad0307dfa592557783fd68a90cc7","isrc":"USSM16800119","name":"That's All Right - Live at Bill Graham's Fillmore Auditorium, San Francisco, CA - September 1968","registered_at":"2026-06-25T22:47:47Z","spotify_id":"2FhpJLS4WuxMIM2z8Fj5va","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0068313d16545c96995c1f3eebf6713d4834ad0307dfa592557783fd68a90cc7. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2FhpJLS4WuxMIM2z8Fj5va.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2FhpJLS4WuxMIM2z8Fj5va.
Green Onions - Live at Bill Graham's Fillmore Auditorium, San Francisco, CA - September 1968
{"copyright_id":"0x89b158a50f409b1e32485c532325edf6580058d6697d680b604ab999782c3822","isrc":"USSM16800120","name":"Green Onions - Live at Bill Graham's Fillmore Auditorium, San Francisco, CA - September 1968","registered_at":"2026-06-20T07:38:10Z","spotify_id":"3Y3qYb9ZYleOwWDXe680Oz","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89b158a50f409b1e32485c532325edf6580058d6697d680b604ab999782c3822. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3Y3qYb9ZYleOwWDXe680Oz.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3Y3qYb9ZYleOwWDXe680Oz.
Fillmore East: The Lost Concert Tapes 12/13/68
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1839c430ddc2505cf1bb93678ce0729d285ca61462ba56b4b6c9c70862f2f9e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4o7ab8uOK45FRbSHjrLP4K.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4o7ab8uOK45FRbSHjrLP4K.
Mike Bloomfield's Introduction of Johnny Winter - Live
It's My Own Fault (feat. Johnny Winter) - Live
{"copyright_id":"0x44f429a1948a66ceebb8dd6ccb9227409e1f33d705c9a9c5f289fdee97fe28fe","isrc":"USSM10205160","name":"It's My Own Fault (feat. Johnny Winter) - Live","registered_at":"2026-06-24T14:59:22Z","spotify_id":"55XWyBGiTVW67H0b9JO4aq","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44f429a1948a66ceebb8dd6ccb9227409e1f33d705c9a9c5f289fdee97fe28fe. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/55XWyBGiTVW67H0b9JO4aq.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/55XWyBGiTVW67H0b9JO4aq.
59th Street Bridge Song (Feelin' Groovy) - Live
{"copyright_id":"0xac753beb0cb0fbd5b073e981595c49835028559f6d7edf96ba38e051cb69f298","isrc":"USSM10205161","name":"59th Street Bridge Song (Feelin' Groovy) - Live","registered_at":"2026-06-27T05:21:48Z","spotify_id":"4cSKuBEITenAkFzf6w4GPZ","type":"track"}
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. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4cSKuBEITenAkFzf6w4GPZ.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4cSKuBEITenAkFzf6w4GPZ.
{"copyright_id":"0x48245b4309e9fdbf55b52fe24bf9db1d8b7aacfb6c6f7208ab306a8b4253dcf4","isrc":"USSM10205162","name":"(Please) Tell Me Partner - Live","registered_at":"2026-06-25T22:36:19Z","spotify_id":"4f2gBjL5Qo3Xyd6XzMvDha","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48245b4309e9fdbf55b52fe24bf9db1d8b7aacfb6c6f7208ab306a8b4253dcf4. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4f2gBjL5Qo3Xyd6XzMvDha.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4f2gBjL5Qo3Xyd6XzMvDha.
Don't Throw Your Love On Me So Strong - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cc380afc9e04c005b7590bf13d0957e64cc0286e00412a853f08e3170fd737e. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1pnz8pvhwN949p5KnFIg1d.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1pnz8pvhwN949p5KnFIg1d.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc390849647496119e55ddd56d2e1d767737e85a4c1150fe19392d1587ae615a5. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/58clk1u8Q2fXqnevJ1xibu.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/58clk1u8Q2fXqnevJ1xibu.
{"copyright_id":"0xa6d68ebd49696a0f3b42b0dd7d6a725652f863555e40f28534c0388e8c486659","isrc":"USSM10306016","name":"I Love You More Than You'll Ever Know","registered_at":"2026-06-10T04:51:24Z","spotify_id":"4kuqEoTdwjqdt6Fy3X6vF8","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6d68ebd49696a0f3b42b0dd7d6a725652f863555e40f28534c0388e8c486659. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4kuqEoTdwjqdt6Fy3X6vF8.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4kuqEoTdwjqdt6Fy3X6vF8.
{"copyright_id":"0x042b53a0d0205cb46c8f71073c747d6505c11f3a97002ffeedecea9dde9ae83f","isrc":"USSM10306018","name":"Albert's Shuffle","registered_at":"2026-06-07T14:10:31Z","spotify_id":"1eWZY9g8A7GAbBTfxMUy14","type":"track"}
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. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1eWZY9g8A7GAbBTfxMUy14.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1eWZY9g8A7GAbBTfxMUy14.
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. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5o2a59EwwRXdDlBiAWjd3W.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5o2a59EwwRXdDlBiAWjd3W.
{"copyright_id":"0x19816988b0deb77fe9beda7a5b5b859af2249b75ef866b0f241a2b1e61f5710e","isrc":"USSM10304228","name":"Double or Nothing","registered_at":"2026-06-11T14:34:41Z","spotify_id":"2JFvvWkZE0BWSxGvlLFejo","type":"track"}
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. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2JFvvWkZE0BWSxGvlLFejo.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2JFvvWkZE0BWSxGvlLFejo.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82af1a975e531a24cedd64f42f43ed7293e27132589cff3c995763e70b3b5052. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6cuKyevjNVrb4I7BAA9NTv.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6cuKyevjNVrb4I7BAA9NTv.
Super Session (with Al Kooper & Stephen Stills)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40cb8384f364e1d82d48f6468c5490632773e2ce2243218e139d2bba47ee0e15. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2hfjGsWCj47bdpE6oJuUL7.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2hfjGsWCj47bdpE6oJuUL7.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac9a35118a52164fc7dbac953c90461f6f1c824ab818723f4a4770299999d45c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4aWZIBCBMQEgMna9JpgW90.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4aWZIBCBMQEgMna9JpgW90.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84472c9f2ede13e4dc2e1ee2c183862a80039b72027a977e78abda33d7a7320e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2gkEufrsoGisa7p4rh6K22.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2gkEufrsoGisa7p4rh6K22.
{"copyright_id":"0x387b4b1368f97cc17b61adc29ce6d14fffb0febe988bfc11bcbf71fc4c96a166","isrc":"USSM16800010","name":"Blues for Nothing","registered_at":"2026-06-07T10:32:40Z","spotify_id":"6tPZzx5GfGTAG4ehDYnL7b","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x387b4b1368f97cc17b61adc29ce6d14fffb0febe988bfc11bcbf71fc4c96a166. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6tPZzx5GfGTAG4ehDYnL7b.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6tPZzx5GfGTAG4ehDYnL7b.
Season of the Witch - 2002 Remix w/o Horns
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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. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6Wi0DHWomfgBLoBo14yyDp.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6Wi0DHWomfgBLoBo14yyDp.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3897abaf93592279b3a875c3467db2de5d5842394933595bfb59b727d923c5bc. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7Dz6chaHT4z511PPLUYSCt.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7Dz6chaHT4z511PPLUYSCt.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02f762f17437ca3d4132e68e9e492cda1ad7d2a1199125040225501391fed566. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7AaUATKp29w0x3C8RAv3lK.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7AaUATKp29w0x3C8RAv3lK.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01ce74455ca9ed8bb933890ad2eb155fc3ab46b8315f2177e56398f372094059. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7jeF74lLCO5EzfK6iRdc2B.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7jeF74lLCO5EzfK6iRdc2B.
It Takes a Lot to Laugh, It Takes a Train to Cry
{"copyright_id":"0xfe48fa8e01d33b8120febd6622409f10de570536443556c484010e5f3a809ebc","isrc":"USSM19917716","name":"It Takes a Lot to Laugh, It Takes a Train to Cry","registered_at":"2026-06-09T05:29:35Z","spotify_id":"0kVDDRnrwLTzse9FMESHeV","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe48fa8e01d33b8120febd6622409f10de570536443556c484010e5f3a809ebc. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0kVDDRnrwLTzse9FMESHeV.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0kVDDRnrwLTzse9FMESHeV.
{"copyright_id":"0xf75179abeefe830e316ca3e77e334564e1c995641b65d0141a4efd71c1a38ad1","isrc":"USSM19917714","name":"His Holy Modal Majesty","registered_at":"2026-06-10T11:05:52Z","spotify_id":"6amca6q63DvQnpEGUzrd2i","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf75179abeefe830e316ca3e77e334564e1c995641b65d0141a4efd71c1a38ad1. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6amca6q63DvQnpEGUzrd2i.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6amca6q63DvQnpEGUzrd2i.
Super Sessions (with Al Kooper & Stephen Stills)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40cb8384f364e1d82d48f6468c5490632773e2ce2243218e139d2bba47ee0e15. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6HCMiREJ8TQzRPNuRr7MuU.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6HCMiREJ8TQzRPNuRr7MuU.
{"copyright_id":"0x64e017ca6d3be7d824cb9ea40df7953cbeb20bc047d0fecacb986399fe027d32","isrc":"USSM19917719","name":"Harvey's Tune","registered_at":"2026-06-10T10:54:30Z","spotify_id":"14RPUebsDSZCBeRz3htV9z","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64e017ca6d3be7d824cb9ea40df7953cbeb20bc047d0fecacb986399fe027d32. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/14RPUebsDSZCBeRz3htV9z.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/14RPUebsDSZCBeRz3htV9z.
Fat Grey Cloud - Live at The Fillmore West, San Francisco, CA
{"copyright_id":"0xe5f726168bd91be729a30dd3e35b82419959e401757fe1ea5d70029271ce5e85","isrc":"USSM10113250","name":"Fat Grey Cloud - Live at The Fillmore West, San Francisco, CA","registered_at":"2026-06-19T01:07:42Z","spotify_id":"2W2qURrXeJxuZeFSyUnhFF","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5f726168bd91be729a30dd3e35b82419959e401757fe1ea5d70029271ce5e85. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2W2qURrXeJxuZeFSyUnhFF.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2W2qURrXeJxuZeFSyUnhFF.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40cb8384f364e1d82d48f6468c5490632773e2ce2243218e139d2bba47ee0e15. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0ijBit6CMpGPX1DI2dimny.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0ijBit6CMpGPX1DI2dimny.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac9a35118a52164fc7dbac953c90461f6f1c824ab818723f4a4770299999d45c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0Fux0QW0JijfRUYBAKrKW8.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0Fux0QW0JijfRUYBAKrKW8.