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 0xf67cc46d74e58afe2f9f07f5e436122c0834db0e3094d644abab1ffba31e4b4d. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/757e9620-f026-46d2-a00f-d5dc54ecc7a9.json and https://artists.proofprofile.net/proofs/artist/757e9620-f026-46d2-a00f-d5dc54ecc7a9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x7f2d9e0239846bb7419ae3e93248ca7e75b4c8499f9a141cd5920d7959b55d2a. 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/5nMBv74odr43XioNsthJbn.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/5nMBv74odr43XioNsthJbn.
{"copyright_id":"0x8e7a860b7aa1c69ec5fdba9ffce6dc8ccb9243b86dc4cd0abc29a9451db96615","isrc":"USAT20200794","name":"Dying Crapshooters Blues","registered_at":"2026-06-09T00:53:28Z","spotify_id":"3DkgdWX7K9FuYlbCTuhcnC","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e7a860b7aa1c69ec5fdba9ffce6dc8ccb9243b86dc4cd0abc29a9451db96615. 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/3DkgdWX7K9FuYlbCTuhcnC.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/3DkgdWX7K9FuYlbCTuhcnC.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e8b54b7a40356fe39a367e0e56bb60f3017f9dae11132e8598e004655881ff3. 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/71krpOlcjbYWXH1g699vgE.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/71krpOlcjbYWXH1g699vgE.
{"copyright_id":"0x76aa5dd638cf27ba5d2a48f5d904007222a5d2f28a7fbac0dea202ac4406a773","isrc":"USAT20202149","name":"I Got the Cross the River Jordan","registered_at":"2026-06-06T07:08:48Z","spotify_id":"4vqDFur1cyE8lS1oD3XiCB","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76aa5dd638cf27ba5d2a48f5d904007222a5d2f28a7fbac0dea202ac4406a773. 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/4vqDFur1cyE8lS1oD3XiCB.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/4vqDFur1cyE8lS1oD3XiCB.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d963b2f0b4f6d5da7090085926560b18c938f92d4a39802afb38927c57ae942. 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/6xhDyuhqX7n1Q2ey8a8Unp.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/6xhDyuhqX7n1Q2ey8a8Unp.
Georgia Fingerstyle Country Blues Classics
Fingerpicking Maestro - the Blues of Blind Willie McTell
Trying to Get Home (Climbing High Mountains)
Don't You See How This World Made a Change
This Is Not the Stove to Brown Your Bread
B and O Blues, No. 2 (Alternate Version)
We Got to Meet Death One Day (Alternate Version)
Just as Well Get Ready, You Got to Die / Climbing High Mountains / Tryin' to Get Home
Monologue on Old Songs: Old Time Religion / Amen
Monologues On: The History of the Blues / Life as Maker of Records / On Himself
I Got to Cross the River Jordan - Take 2
Don't You See How This World Made A Change
Blind Willie McTell -Statesboro Blues - The Early Years 1927-1935
{"copyright_id":"0x58a17a1f6fd35b95bbaf921e7e3e060bbac729c4ae17a5acf347b1ecd202aa6a","isrc":"GBENE0501533","name":"Statesboro Blues","registered_at":"2026-06-06T07:10:28Z","spotify_id":"05Fqtv0hpBriJj803R6x8i","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58a17a1f6fd35b95bbaf921e7e3e060bbac729c4ae17a5acf347b1ecd202aa6a. 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/05Fqtv0hpBriJj803R6x8i.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/05Fqtv0hpBriJj803R6x8i.
This Is Not The Stove To Brown Your Bread
Statesboro Blues - When The Sun Goes Down Series
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a0f27f74304bed0a98b39a44b5dc4280019479a2b890d2ebacf66d7d4b2106b. 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/4x7wiUISu929SJGBvHS3Dr.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/4x7wiUISu929SJGBvHS3Dr.
Mr. McTell Got the Blues - 2003 Remastered
{"copyright_id":"0x416c758e9efc990fbc92e2a93899e885efa18f61450c95b06d3a6684994afd55","isrc":"USBB10300697","name":"Mr. McTell Got the Blues - 2003 Remastered","registered_at":"2026-06-10T09:59:24Z","spotify_id":"5w3davI2J6IeUfBZ4cE2qq","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x416c758e9efc990fbc92e2a93899e885efa18f61450c95b06d3a6684994afd55. 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/5w3davI2J6IeUfBZ4cE2qq.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/5w3davI2J6IeUfBZ4cE2qq.
Mama 'Tain't Long Fo' Day - 2003 Remastered
Rollin' Mama Blues (Barrelhouse Mama Blues) - 2003 Remastered
Mama Let Me Scoop For You - 2003 Remastered
Searching the Desert for the Blues - 2003 Remastered
This is Not the Stove to Brown Your Bread - 2003 Remastered
Mr. McTell Got the Blues - 2003 Remastered - Take 2
Just As Well Get Ready, You Got To Die; Climbing High Mountains, Tryin' To Get H
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa83d4ad26d5a1950a4dcbb1f8582cbd372f1d637718e4d55e007073223f6e2d4. 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/51AbRZEbXM11hnG5nQt3hX.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/51AbRZEbXM11hnG5nQt3hX.
{"copyright_id":"0x8ddc463b2b6fef5c9d1ce56010457004c9c3120ba2448eff4e236f9f0f7b8c84","isrc":"USA560519600","name":"I Got To Cross The River Jordan","registered_at":"2026-06-25T02:03:51Z","spotify_id":"07uspVflip7kQwkx6uOlGK","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ddc463b2b6fef5c9d1ce56010457004c9c3120ba2448eff4e236f9f0f7b8c84. 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/07uspVflip7kQwkx6uOlGK.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/07uspVflip7kQwkx6uOlGK.
Monolgue On Old Songs; Old Time Religion, Amen
Monologue On History Of The Blues; Monologue On Life As Maker Of Records; Monolo
{"copyright_id":"0xbf394b3aea0c62ce2e08f7a5d92ba7e68995f89cf14e6922074f4aeaa4e97fc5","isrc":"ATW169910205","name":"Come On Around To My House Mama","registered_at":"2026-06-19T20:11:37Z","spotify_id":"2QoyOnNXMiHWAYfimn3oR1","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf394b3aea0c62ce2e08f7a5d92ba7e68995f89cf14e6922074f4aeaa4e97fc5. 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/2QoyOnNXMiHWAYfimn3oR1.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/2QoyOnNXMiHWAYfimn3oR1.
{"copyright_id":"0xbba5bdee2a797606b3b28377fb6172927778c4fa27ac7815f439700c853e7f8d","isrc":"USFI86100328","name":"Baby, It Must Be Love","registered_at":"2026-06-20T15:17:06Z","spotify_id":"7xHcmAfJXaNCT7KH2dDMId","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbba5bdee2a797606b3b28377fb6172927778c4fa27ac7815f439700c853e7f8d. 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/7xHcmAfJXaNCT7KH2dDMId.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/7xHcmAfJXaNCT7KH2dDMId.
{"copyright_id":"0xd4e55e16702ffedf1e2976fe20b3dbc015441d604205e151d6b97fe7de27c715","isrc":"USFI86100333","name":"Goodbye Blues","registered_at":"2026-06-18T08:08:34Z","spotify_id":"0NaOwurgFUVLofBk0gM8OQ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4e55e16702ffedf1e2976fe20b3dbc015441d604205e151d6b97fe7de27c715. 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/0NaOwurgFUVLofBk0gM8OQ.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/0NaOwurgFUVLofBk0gM8OQ.
{"copyright_id":"0x5c1532b5549a6cf21f929729e0bdd805f1ba21028147a7daab85a06cbe108d0b","isrc":"USFI84900055","name":"Broke Down Engine Blues","registered_at":"2026-06-09T12:21:26Z","spotify_id":"3pv4AWo4JMFi00CrvOfbOo","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c1532b5549a6cf21f929729e0bdd805f1ba21028147a7daab85a06cbe108d0b. 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/3pv4AWo4JMFi00CrvOfbOo.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/3pv4AWo4JMFi00CrvOfbOo.
Blind Willie McTell Vol. 2 (1931 - 1933)
{"copyright_id":"0xa14bea6b588e3ee10547195138600de6396328b94dc179b9263b51d796b7c61e","isrc":"QM4TX1880410","name":"Searchin' the Desert for the Blues","registered_at":"2026-06-10T09:55:06Z","spotify_id":"5UEBb4EO3REVUScwnBtdR5","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa14bea6b588e3ee10547195138600de6396328b94dc179b9263b51d796b7c61e. 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/5UEBb4EO3REVUScwnBtdR5.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/5UEBb4EO3REVUScwnBtdR5.
I Got Cross de River O' Jordan - Original Mix
I Got Cross de River O' Jordan - Mix Two
Just As Well Get Ready, Climbing High Mountains - Medley
{"copyright_id":"0xc2280a5b8bf418e6071743b3679fe788d11dcda4b32f5c06dfd5572e7fb0fba0","isrc":"DEXO22208571","name":"Statesboro Blues","registered_at":"2026-06-21T13:28:19Z","spotify_id":"2T3YfMI0xRk93bmVMuJcKu","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2280a5b8bf418e6071743b3679fe788d11dcda4b32f5c06dfd5572e7fb0fba0. 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/2T3YfMI0xRk93bmVMuJcKu.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/2T3YfMI0xRk93bmVMuJcKu.
The Legendary Library Of Congress Session
Monologue On: History Of The Blues / Life As Maker Of Records / Himself
Just As Well Get Ready, You Got To Die / Climbing High Mountains, Trying To Get Home
{"copyright_id":"0xc76cb588a36af5053b155122ce1ab9b69d63b3353b5dc77bbaa343fd42f211a3","isrc":"GBLGL1206923","name":"Georgia Rag","registered_at":"2026-06-19T20:11:43Z","spotify_id":"7byvwH3wWgh7yxazHBLiPV","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc76cb588a36af5053b155122ce1ab9b69d63b3353b5dc77bbaa343fd42f211a3. 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/7byvwH3wWgh7yxazHBLiPV.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/7byvwH3wWgh7yxazHBLiPV.
{"copyright_id":"0xc677f3121aba5c79115f524b27a5f39dae4a2260ccb53a0d81cce8aa03ecfc08","isrc":"GBLGL1206928","name":"Travelin' Blues","registered_at":"2026-06-26T23:38:59Z","spotify_id":"4vNEBxcAqNNKa8HzrirbOm","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc677f3121aba5c79115f524b27a5f39dae4a2260ccb53a0d81cce8aa03ecfc08. 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/4vNEBxcAqNNKa8HzrirbOm.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/4vNEBxcAqNNKa8HzrirbOm.
{"copyright_id":"0x2e229d2c260ee2b199552c491b57ba0f5ad8ef0bc11e07900510fa5d46831e69","isrc":"GBLGL1206933","name":"Southern Can Is Mine","registered_at":"2026-06-19T00:05:10Z","spotify_id":"2rclYhIjJTGzJjhQwwzg5a","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e229d2c260ee2b199552c491b57ba0f5ad8ef0bc11e07900510fa5d46831e69. 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/2rclYhIjJTGzJjhQwwzg5a.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/2rclYhIjJTGzJjhQwwzg5a.
The Blues Collection: Blind Willie Mctell
We Got A Meet Death One Day, Pt. 1 - Take 1
We Got A Meet Death One Day, Pt. 2 - Take 2
Blind Willie McTell (feat. Curly Weaver)
It's Your Time To Worry - Remastered
Searchin' The Desert For The Blues - Remastered
It's Good Little Thing - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf1b147e4e8ae4833dc63845531eeb0f62ee9e2796a9110a333f65c40060aa9. 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/2G7JZ5mLihOm7j1pn5VKuX.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/2G7JZ5mLihOm7j1pn5VKuX.