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 0xf5c5f8dfe6258f2700106faab627b2f7af02dcb57c29e91097823c5f35d30b91. 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/90f7abb2-44ee-4294-ae66-0f37f39dd183.json and https://artists.proofprofile.net/proofs/artist/90f7abb2-44ee-4294-ae66-0f37f39dd183.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
When You're Not There - Smallpools Remix
The Song Of Purple Summer - Original Broadway Cast Recording/2006
Kurt Vonnegut's God Bless You, Mr. Rosewater (Premiere Cast Recording)
Touch Me - Original Broadway Cast Recording/2006
{"copyright_id":"0x55c3cd63edd5e605997baa513cd423360d5aff8b23f90ab33b8aefbcc0c898ee","isrc":"USUM70619106","name":"Touch Me - Original Broadway Cast Recording/2006","registered_at":"2026-06-04T16:34:49Z","spotify_id":"11YRYax7RFkgfmTHeNXW6X","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 0x55c3cd63edd5e605997baa513cd423360d5aff8b23f90ab33b8aefbcc0c898ee. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/11YRYax7RFkgfmTHeNXW6X.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/11YRYax7RFkgfmTHeNXW6X.
Zoey's Extraordinary Playlist: Season 1, Episode 10 (Music From the Original TV Series)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x202c1715f3d7be949091980181e1de14ed7551c1026b404aa745cd4fc926f1e8. 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/7njHr7ke2WNfw5reQ8UZKR.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/7njHr7ke2WNfw5reQ8UZKR.
The Bitch Of Living - Original Broadway Cast Recording/2006
Spring Awakening (Original Broadway Cast Recording)
{"copyright_id":"0x42c7fff5b6fc29c3162cca1de9298dfafcf0faf8029043148f2353cf5b09a481","isrc":"USUM70619098","name":"The Bitch Of Living - Original Broadway Cast Recording/2006","registered_at":"2026-06-04T11:00:48Z","spotify_id":"16BIv1FQh44e4IyRlnzTaQ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42c7fff5b6fc29c3162cca1de9298dfafcf0faf8029043148f2353cf5b09a481. 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/16BIv1FQh44e4IyRlnzTaQ.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/16BIv1FQh44e4IyRlnzTaQ.
My Junk - Original Broadway Cast Recording/2006
{"copyright_id":"0xca69a6cfb7ae7aa2f55b59325a6d679129e14fc732f55dd3b66a22bd8ac0aa88","isrc":"USUM70619097","name":"My Junk - Original Broadway Cast Recording/2006","registered_at":"2026-06-05T04:59:34Z","spotify_id":"1ObqIFmNsmION2gjrvYycO","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca69a6cfb7ae7aa2f55b59325a6d679129e14fc732f55dd3b66a22bd8ac0aa88. 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/1ObqIFmNsmION2gjrvYycO.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/1ObqIFmNsmION2gjrvYycO.
{"copyright_id":"0x55c3cd63edd5e605997baa513cd423360d5aff8b23f90ab33b8aefbcc0c898ee","isrc":"USUM70619106","name":"Touch Me - Original Broadway Cast Recording/2006","registered_at":"2026-06-04T16:34:49Z","spotify_id":"5QithZNnOkwRsvoD5vWQmh","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55c3cd63edd5e605997baa513cd423360d5aff8b23f90ab33b8aefbcc0c898ee. 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/5QithZNnOkwRsvoD5vWQmh.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/5QithZNnOkwRsvoD5vWQmh.
The Dark I Know Well - Original Broadway Cast Recording/2006
{"copyright_id":"0x81fe2377f0d98987e0ea9e96233f4dbc7ebf64fbd73cc234982585e68339dc22","isrc":"USUM70619099","name":"The Dark I Know Well - Original Broadway Cast Recording/2006","registered_at":"2026-06-05T08:04:38Z","spotify_id":"1g8vasmUyQkwfSX1dN9lNM","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81fe2377f0d98987e0ea9e96233f4dbc7ebf64fbd73cc234982585e68339dc22. 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/1g8vasmUyQkwfSX1dN9lNM.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/1g8vasmUyQkwfSX1dN9lNM.
And Then There Were None - Original Broadway Cast Recording/2006
{"copyright_id":"0x34fff3f1eacc37a99ae9940c56814a055d998c5286ad64f774e56454dd92d168","isrc":"USUM70619044","name":"And Then There Were None - Original Broadway Cast Recording/2006","registered_at":"2026-06-05T16:08:16Z","spotify_id":"2dID0sfihq1i6NzMV9Anv1","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34fff3f1eacc37a99ae9940c56814a055d998c5286ad64f774e56454dd92d168. 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/2dID0sfihq1i6NzMV9Anv1.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/2dID0sfihq1i6NzMV9Anv1.
The Mirror-Blue Night - Original Broadway Cast Recording/2006
{"copyright_id":"0x96ae8be6b0960e62b115308b789caa78d3ca6265d3e57705bfc58db9ad193785","isrc":"USUM70619101","name":"The Mirror-Blue Night - Original Broadway Cast Recording/2006","registered_at":"2026-06-06T02:37:38Z","spotify_id":"3MA54qDiTuJ1WhQLB0Dfwf","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96ae8be6b0960e62b115308b789caa78d3ca6265d3e57705bfc58db9ad193785. 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/3MA54qDiTuJ1WhQLB0Dfwf.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/3MA54qDiTuJ1WhQLB0Dfwf.
I Believe - Original Broadway Cast Recording/2006
{"copyright_id":"0xf657bacdad5b14d6168a94ee29e96f78424e322143d876abbce3f8ebe7dd8af9","isrc":"USUM70619075","name":"I Believe - Original Broadway Cast Recording/2006","registered_at":"2026-06-06T02:36:44Z","spotify_id":"5yT793oYqv5gU3NmrK9VwB","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf657bacdad5b14d6168a94ee29e96f78424e322143d876abbce3f8ebe7dd8af9. 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/5yT793oYqv5gU3NmrK9VwB.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/5yT793oYqv5gU3NmrK9VwB.
The Guilty Ones - Original Broadway Cast Recording/2006
{"copyright_id":"0x6569faef70d5c939db3af067932cefeb2e3642fa2ec29bdce395ad24f335daa6","isrc":"USUM70619100","name":"The Guilty Ones - Original Broadway Cast Recording/2006","registered_at":"2026-06-06T02:37:58Z","spotify_id":"7rPHccalyoMbesQaF4qbmj","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6569faef70d5c939db3af067932cefeb2e3642fa2ec29bdce395ad24f335daa6. 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/7rPHccalyoMbesQaF4qbmj.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/7rPHccalyoMbesQaF4qbmj.
Left Behind - Original Broadway Cast Recording/2006
{"copyright_id":"0xbe1a31a86e83b8f2c3ec521b0febd312c0972dbdb11721ca5d219a094a7df499","isrc":"USUM70619076","name":"Left Behind - Original Broadway Cast Recording/2006","registered_at":"2026-06-05T16:08:14Z","spotify_id":"3nLH8otsE0Prl1FNK65G3H","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe1a31a86e83b8f2c3ec521b0febd312c0972dbdb11721ca5d219a094a7df499. 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/3nLH8otsE0Prl1FNK65G3H.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/3nLH8otsE0Prl1FNK65G3H.
Totally Fucked - Original Broadway Cast Recording/2006
{"copyright_id":"0x34b41a90861624913f71f0c690c172f2e7403176f9f7d1a4b1d10cd109f21cdf","isrc":"USUM70619105","name":"Totally Fucked - Original Broadway Cast Recording/2006","registered_at":"2026-06-04T12:53:08Z","spotify_id":"2s1LwWGa7WYHT2y1I0BVnh","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34b41a90861624913f71f0c690c172f2e7403176f9f7d1a4b1d10cd109f21cdf. 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/2s1LwWGa7WYHT2y1I0BVnh.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/2s1LwWGa7WYHT2y1I0BVnh.
The Word Of Your Body (Reprise) - Original Broadway Cast Recording/2006
{"copyright_id":"0xd259b6ef2d141ecf45e0f14e68f4d2877ec069a927e4ab9e51d4b40761478e93","isrc":"USUM70619104","name":"The Word Of Your Body (Reprise) - Original Broadway Cast Recording/2006","registered_at":"2026-06-06T16:28:06Z","spotify_id":"4gpqhqFWeDJmNfvEdIw9bg","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd259b6ef2d141ecf45e0f14e68f4d2877ec069a927e4ab9e51d4b40761478e93. 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/4gpqhqFWeDJmNfvEdIw9bg.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/4gpqhqFWeDJmNfvEdIw9bg.
{"copyright_id":"0xa7a70a6ddab8f003c0aebf322cfe4495f37067c20959b8af54ad012582821e44","isrc":"USUM70619102","name":"The Song Of Purple Summer - Original Broadway Cast Recording/2006","registered_at":"2026-06-05T16:08:24Z","spotify_id":"6DhnBI366SUE3aqR66wQOE","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7a70a6ddab8f003c0aebf322cfe4495f37067c20959b8af54ad012582821e44. 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/6DhnBI366SUE3aqR66wQOE.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/6DhnBI366SUE3aqR66wQOE.