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 0x5b22cfcc755a91ff6cab7d46374225b0c5be5c82a787a9f0f1bddc09b9d8840c. 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/16711383-d0d4-4814-9435-c22124b8f9c0.json and https://artists.proofprofile.net/proofs/artist/16711383-d0d4-4814-9435-c22124b8f9c0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
If you were a movie, this would be your soundtrack
{"copyright_id":"0xfab95d0535aded0b5ddd11eb2e85bbd87f1ce0afc699bcfec6818b454fa15bae","isrc":"USEK71216501","name":"Scene One - James Dean & Audrey Hepburn","registered_at":"2026-06-02T02:19:23Z","spotify_id":"1WH0HcFJhu5r6Jxqdsh54N","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 0xfab95d0535aded0b5ddd11eb2e85bbd87f1ce0afc699bcfec6818b454fa15bae. 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/1WH0HcFJhu5r6Jxqdsh54N.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/1WH0HcFJhu5r6Jxqdsh54N.
{"copyright_id":"0x19169d02617faf516a73a05cc72a8727bd5afd019db60dab9e28abb216604e8f","isrc":"USEK71216502","name":"Scene Two - Roger Rabbit","registered_at":"2026-06-04T05:27:07Z","spotify_id":"1ufmdhLiYExFU8lAVA9wjQ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19169d02617faf516a73a05cc72a8727bd5afd019db60dab9e28abb216604e8f. 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/1ufmdhLiYExFU8lAVA9wjQ.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/1ufmdhLiYExFU8lAVA9wjQ.
{"copyright_id":"0xd123af2788a7fb452aeb0c2d777701e83b226c15da0f3a8ec4c823c2442064f5","isrc":"USEK71216503","name":"Scene Three - Stomach Tied In Knots","registered_at":"2026-06-04T08:41:29Z","spotify_id":"52fncpBiz3gCpXEUxSaKGh","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd123af2788a7fb452aeb0c2d777701e83b226c15da0f3a8ec4c823c2442064f5. 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/52fncpBiz3gCpXEUxSaKGh.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/52fncpBiz3gCpXEUxSaKGh.
Scene Four - Don't You Ever Forget About Me
{"copyright_id":"0x084c40e8eeafdbdf060a1cf1d89c0ce125c39f86ba80683d83a43c0c5a6d6f7f","isrc":"USEK71216504","name":"Scene Four - Don't You Ever Forget About Me","registered_at":"2026-06-04T11:06:21Z","spotify_id":"1ZYvipHtwDIyGxVR19iznJ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x084c40e8eeafdbdf060a1cf1d89c0ce125c39f86ba80683d83a43c0c5a6d6f7f. 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/1ZYvipHtwDIyGxVR19iznJ.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/1ZYvipHtwDIyGxVR19iznJ.
Scene Five - With Ears To See and Eyes To Hear
{"copyright_id":"0xf3e9acfdfa75e00cfcc5c566455af1ac64ed0fdfc81f5f1f960fa7527823e3dc","isrc":"USEK71216505","name":"Scene Five - With Ears To See and Eyes To Hear","registered_at":"2026-06-04T07:42:31Z","spotify_id":"5Xe1JhJRGtHGwYiOLOk0oo","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3e9acfdfa75e00cfcc5c566455af1ac64ed0fdfc81f5f1f960fa7527823e3dc. 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/5Xe1JhJRGtHGwYiOLOk0oo.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/5Xe1JhJRGtHGwYiOLOk0oo.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13727e6724717479efebf6a80c129a44bbd130ed651fb88bfade5d032eb73f22. 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/5LfFjqx9c83BMXrJVfYT0Y.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/5LfFjqx9c83BMXrJVfYT0Y.
If You Were A Movie, This Would Be Your Soundtrack
{"copyright_id":"0x996ab964a9481aacae0171252a7fcd9de6789a73038ca106e7a22d8dd6d2ba99","isrc":"USYFZ1918301","name":"Leave It All Behind","registered_at":"2026-06-04T07:33:47Z","spotify_id":"3k0tqE5mlRFbzUB5iHVDFN","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x996ab964a9481aacae0171252a7fcd9de6789a73038ca106e7a22d8dd6d2ba99. 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/3k0tqE5mlRFbzUB5iHVDFN.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/3k0tqE5mlRFbzUB5iHVDFN.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4fe5878f00ceaa78907036d5d6c24794452244466fa89bbdd0018c1a6921fc8. 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/3aSIs8kwbDGbSSHpEg4sEQ.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/3aSIs8kwbDGbSSHpEg4sEQ.
{"copyright_id":"0x954b2f80818fcb205ef6bd2b001ad8c2ad6efdb4795dcdde433c974550e7a3e8","isrc":"USYFZ1918303","name":"How It Feels to Be Lost","registered_at":"2026-06-04T15:33:36Z","spotify_id":"6Yy4nSyudG4Ui7JcRHkMIO","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x954b2f80818fcb205ef6bd2b001ad8c2ad6efdb4795dcdde433c974550e7a3e8. 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/6Yy4nSyudG4Ui7JcRHkMIO.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/6Yy4nSyudG4Ui7JcRHkMIO.
{"copyright_id":"0xe21308ca2d8a657718ca5420e68976dabfe8dda10b7bf421acdf8dff80cfed9e","isrc":"USYFZ1918304","name":"Agree to Disagree","registered_at":"2026-06-04T11:18:19Z","spotify_id":"47rnEcnCJ89jrL3yzQygEw","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe21308ca2d8a657718ca5420e68976dabfe8dda10b7bf421acdf8dff80cfed9e. 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/47rnEcnCJ89jrL3yzQygEw.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/47rnEcnCJ89jrL3yzQygEw.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0052372e2c5357afa9b41d44556dccfbb798da6ce87c6496e80267424db66cf5. 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/1q9TI8tiDeOqsIISQzI09D.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/1q9TI8tiDeOqsIISQzI09D.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef5280b324aede696b9fc50175f64729a8fdae483411775c854fbcd414271290. 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/7Mq0K3wpovuGQr35Ta6KND.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/7Mq0K3wpovuGQr35Ta6KND.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2389083d7c129277c66246778bee4024c9af0fc137ec8df57cc011e254c780e5. 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/6hUEwiltS9W4UdO3h2NCsK.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/6hUEwiltS9W4UdO3h2NCsK.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c25fd3b9c62700832729be2e91944c3190d983cfa9309e094488d9e0564775d. 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/0BL9Cy5msLrNsioaNjqXcw.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/0BL9Cy5msLrNsioaNjqXcw.
{"copyright_id":"0x0fd971a4d40967b4fc7c6ba5ab320d00bb0ed1a840434ad2ffd637f44b0f633c","isrc":"USYFZ1918309","name":"P.S. Missing You","registered_at":"2026-06-06T03:29:40Z","spotify_id":"2heLoCwrsesmXpsLqC5qdU","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fd971a4d40967b4fc7c6ba5ab320d00bb0ed1a840434ad2ffd637f44b0f633c. 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/2heLoCwrsesmXpsLqC5qdU.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/2heLoCwrsesmXpsLqC5qdU.
{"copyright_id":"0xc435761beeccebfa18c9dd78b14707dd7484cdc7f5e9cc388c0935c661c59615","isrc":"USYFZ1918310","name":"Medicine (Devil in My Head)","registered_at":"2026-06-06T09:50:33Z","spotify_id":"5f0lO9xwTQHitfhcrvTLbw","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc435761beeccebfa18c9dd78b14707dd7484cdc7f5e9cc388c0935c661c59615. 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/5f0lO9xwTQHitfhcrvTLbw.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/5f0lO9xwTQHitfhcrvTLbw.
{"copyright_id":"0xd52b8c2df508d77a9e81cc5cced56108f6d33b60f52c718d2f48352da8e4bf8f","isrc":"USYFZ1918311","name":"Dying to Believe","registered_at":"2026-06-06T16:37:06Z","spotify_id":"2jSBwX8RFCZUh8bySqGJS3","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd52b8c2df508d77a9e81cc5cced56108f6d33b60f52c718d2f48352da8e4bf8f. 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/2jSBwX8RFCZUh8bySqGJS3.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/2jSBwX8RFCZUh8bySqGJS3.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bbc92cc3338833d1e643cd30716630ac27d2725b3a364655d87c3dc0d3691cd. 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/2BAt57GbkJ1DGDDh6U41eS.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/2BAt57GbkJ1DGDDh6U41eS.
{"copyright_id":"0x70e7817d4e5288174b07d959155feffa5048044a28b374b524fdb681739b5428","isrc":"USYFZ2037513","name":"Leave It All Behind - Acoustic","registered_at":"2026-06-07T06:58:56Z","spotify_id":"4B6ODLVDLIWcQxNUWmjlmY","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70e7817d4e5288174b07d959155feffa5048044a28b374b524fdb681739b5428. 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/4B6ODLVDLIWcQxNUWmjlmY.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/4B6ODLVDLIWcQxNUWmjlmY.
{"copyright_id":"0x394b24fc920ddb13f9b3a908cc66b13abffce40f5a8fb287b5fd92eab65a8210","isrc":"USYFZ2037514","name":"Agree to Disagree - Acoustic","registered_at":"2026-06-07T19:14:02Z","spotify_id":"5uxbUvPyzIU64kyuKgrKab","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x394b24fc920ddb13f9b3a908cc66b13abffce40f5a8fb287b5fd92eab65a8210. 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/5uxbUvPyzIU64kyuKgrKab.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/5uxbUvPyzIU64kyuKgrKab.
{"copyright_id":"0xdae20ed3a57618125e3f81d336ee9bf831441a981ab7d0e289d37cd13af9ac51","isrc":"USYFZ2037515","name":"Ghost - Acoustic","registered_at":"2026-06-08T02:26:59Z","spotify_id":"4zXUddFMfjmWIPuIjZEqFX","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdae20ed3a57618125e3f81d336ee9bf831441a981ab7d0e289d37cd13af9ac51. 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/4zXUddFMfjmWIPuIjZEqFX.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/4zXUddFMfjmWIPuIjZEqFX.