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 0x864218c46fe79ceb1f8e0ae3726ab84a5886b164f6b47f3fffb18d7e9c0899df. 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/45a8b18a-55c6-48cc-96f9-fb7aa50f1e0c.json and https://artists.proofprofile.net/proofs/artist/45a8b18a-55c6-48cc-96f9-fb7aa50f1e0c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The King And I: Music From The Motion Picture (Remastered 2001)
{"copyright_id":"0x5dbdc8f173a1b9f2ab20c577297e86490c4a64c3acea8dfc7a0e9d9b43a7fd83","isrc":"USAR20001364","name":"Main Title - Remastered 2001","registered_at":"2026-06-18T20:01:18Z","spotify_id":"0nZ2N4qoc0oUSTX1Z727WY","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 0x5dbdc8f173a1b9f2ab20c577297e86490c4a64c3acea8dfc7a0e9d9b43a7fd83. 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/0nZ2N4qoc0oUSTX1Z727WY.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/0nZ2N4qoc0oUSTX1Z727WY.
{"copyright_id":"0x2c09bd3d4cc7fbdf432626dab16ea35ca04f9e416cf9434fbf0145b7562bd47e","isrc":"USAR20001365","name":"I Whistle A Happy Tune - Remastered","registered_at":"2026-06-08T04:37:10Z","spotify_id":"484EfyGPCMZp5CVuZPPUTC","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c09bd3d4cc7fbdf432626dab16ea35ca04f9e416cf9434fbf0145b7562bd47e. 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/484EfyGPCMZp5CVuZPPUTC.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/484EfyGPCMZp5CVuZPPUTC.
{"copyright_id":"0x107760b7dbe5f8c88b8744e1cb1495d3283fb4157bdd050f83fe296b4e0805ba","isrc":"USAR20001366","name":"My Lord And Master - Remastered 2001","registered_at":"2026-06-21T07:07:50Z","spotify_id":"2clgQBp8Z3qp1DECdQYGZH","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x107760b7dbe5f8c88b8744e1cb1495d3283fb4157bdd050f83fe296b4e0805ba. 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/2clgQBp8Z3qp1DECdQYGZH.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/2clgQBp8Z3qp1DECdQYGZH.
The March Of The Siamese Children - Remastered 2001
{"copyright_id":"0x230d87c117fe802a77db8da7b74c4d442c0abe7ef1a2b29a97a14cdf0a42927f","isrc":"USAR20001367","name":"The March Of The Siamese Children - Remastered 2001","registered_at":"2026-06-10T05:42:19Z","spotify_id":"7urCfcy0bKsKOIAwW1rugR","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x230d87c117fe802a77db8da7b74c4d442c0abe7ef1a2b29a97a14cdf0a42927f. 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/7urCfcy0bKsKOIAwW1rugR.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/7urCfcy0bKsKOIAwW1rugR.
Anna And The Royal Wives - Remastered 2001
{"copyright_id":"0x96f0d2c3f989918d1271180b33b4c5d3436f5faa725fbcaaa0fcaca8cb4c0543","isrc":"USAR20001368","name":"Anna And The Royal Wives - Remastered 2001","registered_at":"2026-06-21T07:17:40Z","spotify_id":"37Oreyb3DfMmm6FCsHeiET","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96f0d2c3f989918d1271180b33b4c5d3436f5faa725fbcaaa0fcaca8cb4c0543. 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/37Oreyb3DfMmm6FCsHeiET.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/37Oreyb3DfMmm6FCsHeiET.
{"copyright_id":"0x1f7e6fc939fce8c9dd8f9516b3f9ebff9f228a0dbba29a7019bde351f16bacd8","isrc":"USAR20001369","name":"Hello, Young Lovers - Remastered 2001","registered_at":"2026-06-08T21:54:04Z","spotify_id":"7onYL1mV4DXeMnp5C5ROZp","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f7e6fc939fce8c9dd8f9516b3f9ebff9f228a0dbba29a7019bde351f16bacd8. 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/7onYL1mV4DXeMnp5C5ROZp.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/7onYL1mV4DXeMnp5C5ROZp.
{"copyright_id":"0x085a7be13ecf9e03f0e151762b08fd1c4b50245faf06cf18a60ce47d9b0d8f10","isrc":"USAR20001370","name":"A Puzzlement - Remastered 2001","registered_at":"2026-06-18T03:45:08Z","spotify_id":"7Jiybd4axJSbH6J1c26ESv","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x085a7be13ecf9e03f0e151762b08fd1c4b50245faf06cf18a60ce47d9b0d8f10. 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/7Jiybd4axJSbH6J1c26ESv.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/7Jiybd4axJSbH6J1c26ESv.
{"copyright_id":"0x00d7312f8b4adf52039051a88a7a4786b5ab3a2d2c6bcec5d2864ca9e6b0735f","isrc":"USAR20001371","name":"Getting To Know You - Remastered 2001","registered_at":"2026-06-07T08:30:30Z","spotify_id":"4lpb2G8gEDgg03CJFJX78a","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00d7312f8b4adf52039051a88a7a4786b5ab3a2d2c6bcec5d2864ca9e6b0735f. 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/4lpb2G8gEDgg03CJFJX78a.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/4lpb2G8gEDgg03CJFJX78a.
Garden Rendezvous - From "The King And I" Soundtrack / Remastered 2001
{"copyright_id":"0x45d9c6c831fae8f73bf8a2368625f0d35ed37fb67d6c12d65dc06de352a4a370","isrc":"USAR20001372","name":"Garden Rendezvous - From \"The King And I\" Soundtrack / Remastered 2001","registered_at":"2026-06-20T09:43:43Z","spotify_id":"4jYKf7iBkMQbPzh3J9gnqu","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45d9c6c831fae8f73bf8a2368625f0d35ed37fb67d6c12d65dc06de352a4a370. 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/4jYKf7iBkMQbPzh3J9gnqu.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/4jYKf7iBkMQbPzh3J9gnqu.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4d257d75170e42620434f0615b7c3a1a60350ddc58e48b0d46f71e07c940154. 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/2WwbuPG8wYZpnDLebYfvj6.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/2WwbuPG8wYZpnDLebYfvj6.
{"copyright_id":"0x19de5d5aa1cc264a4989d96a12806cb2ecaa0fe46dc79cfa97b3642d42cd39ac","isrc":"USAR20001374","name":"I Have Dreamed - Remastered 2001","registered_at":"2026-06-18T03:44:50Z","spotify_id":"1gU2NiToGGv6aCg8YgzpGg","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19de5d5aa1cc264a4989d96a12806cb2ecaa0fe46dc79cfa97b3642d42cd39ac. 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/1gU2NiToGGv6aCg8YgzpGg.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/1gU2NiToGGv6aCg8YgzpGg.
Shall I Tell You What I Think Of You? - Remastered 2001
{"copyright_id":"0x35b27dc99feea37cf580a12db989744b85c7e65a8a562f183f77608fa29609a6","isrc":"USAR20001375","name":"Shall I Tell You What I Think Of You? - Remastered 2001","registered_at":"2026-06-21T18:34:52Z","spotify_id":"0KPg2dKSoxODdKBvjsyqia","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35b27dc99feea37cf580a12db989744b85c7e65a8a562f183f77608fa29609a6. 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/0KPg2dKSoxODdKBvjsyqia.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/0KPg2dKSoxODdKBvjsyqia.
{"copyright_id":"0x656934115b7de21ca7bbd5c3f9cb04cea13db776e7b3f438a5da82afb1338281","isrc":"USAR20001376","name":"Something Wonderful - Remastered 2001","registered_at":"2026-06-18T20:00:10Z","spotify_id":"7xDn6ew9RVPm92aUe1cg6T","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x656934115b7de21ca7bbd5c3f9cb04cea13db776e7b3f438a5da82afb1338281. 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/7xDn6ew9RVPm92aUe1cg6T.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/7xDn6ew9RVPm92aUe1cg6T.
{"copyright_id":"0xc94a704a545a035882af5c47846ed38b5b04e93ec708280bef21d59d4582abe4","isrc":"USAR20001377","name":"Prayer To Buddah - Remastered 2001","registered_at":"2026-06-23T11:20:09Z","spotify_id":"6fXNA1GdCfxZwkvhCVVwi6","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc94a704a545a035882af5c47846ed38b5b04e93ec708280bef21d59d4582abe4. 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/6fXNA1GdCfxZwkvhCVVwi6.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/6fXNA1GdCfxZwkvhCVVwi6.
Waltz Of Anna And Sir Ramsey - Remastered 2001
{"copyright_id":"0x7dff717f4bc197f474df99fc3af54d78ee9c3b70d6580ffa51a620c9db18d8b1","isrc":"USAR20001378","name":"Waltz Of Anna And Sir Ramsey - Remastered 2001","registered_at":"2026-06-24T18:02:26Z","spotify_id":"0DtunSQHYnxNh64jQe9deJ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dff717f4bc197f474df99fc3af54d78ee9c3b70d6580ffa51a620c9db18d8b1. 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/0DtunSQHYnxNh64jQe9deJ.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/0DtunSQHYnxNh64jQe9deJ.
The Small House Of Uncle Thomas - Remastered 2001
{"copyright_id":"0x92e4dc82ca88847e6903f6a60ef83cc37e0c60ca7bde099f453d7e9bee26d2d6","isrc":"USAR20001379","name":"The Small House Of Uncle Thomas - Remastered 2001","registered_at":"2026-06-22T05:56:39Z","spotify_id":"2W8tm5lCeO9Smm7zMKukGK","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92e4dc82ca88847e6903f6a60ef83cc37e0c60ca7bde099f453d7e9bee26d2d6. 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/2W8tm5lCeO9Smm7zMKukGK.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/2W8tm5lCeO9Smm7zMKukGK.
{"copyright_id":"0xebc0c1c565dce7ec8eb22a7e32af6bcad5b237b65d675beb5fb11c514c70d1ae","isrc":"USAR20001380","name":"Song Of The King - Remastered 2001","registered_at":"2026-06-27T09:53:39Z","spotify_id":"0TSsZg45QMoOrBVvIdj54m","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebc0c1c565dce7ec8eb22a7e32af6bcad5b237b65d675beb5fb11c514c70d1ae. 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/0TSsZg45QMoOrBVvIdj54m.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/0TSsZg45QMoOrBVvIdj54m.
Shall We Dance? - From "The King And I" Soundtrack / Remastered 2001
{"copyright_id":"0xff8bc92e299fea15b31b89a5f54e55bf5ee37efd6a29034a54d0a9e3f28e4774","isrc":"USAR20001381","name":"Shall We Dance? - From \"The King And I\" Soundtrack / Remastered 2001","registered_at":"2026-06-05T22:04:43Z","spotify_id":"2laBcnH7gRXWtxZvVSnYgI","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff8bc92e299fea15b31b89a5f54e55bf5ee37efd6a29034a54d0a9e3f28e4774. 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/2laBcnH7gRXWtxZvVSnYgI.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/2laBcnH7gRXWtxZvVSnYgI.
{"copyright_id":"0x4b70e9b24983210b1df7ea10edd02e472ec4214a31ddc60716dcdb307bb8276e","isrc":"USAR20001382","name":"The Letter - Remastered 2001","registered_at":"2026-06-22T05:52:38Z","spotify_id":"3VJFZhbRtO1LcO4U6UDlZp","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b70e9b24983210b1df7ea10edd02e472ec4214a31ddc60716dcdb307bb8276e. 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/3VJFZhbRtO1LcO4U6UDlZp.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/3VJFZhbRtO1LcO4U6UDlZp.
Something Wonderful (Finale) - Remastered 2001
{"copyright_id":"0x215bf5ee87fe21f782654a48029fe76c224841532556a6f2213a8df7549db472","isrc":"USAR20001383","name":"Something Wonderful (Finale) - Remastered 2001","registered_at":"2026-06-20T19:49:37Z","spotify_id":"6IvOXHWCOgS7AaqmHSY46E","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x215bf5ee87fe21f782654a48029fe76c224841532556a6f2213a8df7549db472. 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/6IvOXHWCOgS7AaqmHSY46E.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/6IvOXHWCOgS7AaqmHSY46E.