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 0xa0874ecda3a5dc3d9b151e9a6f3d0cdf81aa36121d80208b7153b88f46b18f1b. 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/5c35743a-3e67-4880-8d6c-98d695243c87.json and https://artists.proofprofile.net/proofs/artist/5c35743a-3e67-4880-8d6c-98d695243c87.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 0xb552a1e97f7fd6b327c6f8c8e85e2ca4191f560f4868464d3c55de78c5e61d0d. 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/3TxDOnikts21i5uoD3j3Gx.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/3TxDOnikts21i5uoD3j3Gx.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe15b7de9e818ebe7da7f58651f0d2579ea29528ab1fc60eb0fdf7ec17fea67b7. 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/0qCM5QaraqqZq1m9K3OuYc.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/0qCM5QaraqqZq1m9K3OuYc.
{"copyright_id":"0xcc212bcab53de20867fa36cfce339e0cf3a37fea80accf34729e740552a87cf3","isrc":"ZZOPM2003076","name":"Somebody Like Me (feat. Brasstracks)","registered_at":"2026-06-10T16:00:27Z","spotify_id":"0MiywregjNJedadEvRcVDU","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc212bcab53de20867fa36cfce339e0cf3a37fea80accf34729e740552a87cf3. 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/0MiywregjNJedadEvRcVDU.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/0MiywregjNJedadEvRcVDU.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c7734ec1c6ac6b3eb357ea28eea9af86ce32ef2cc5ff08d45a59e7931f3d76f. 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/05E0cTcRoab4oCGLt0E3tT.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/05E0cTcRoab4oCGLt0E3tT.
{"copyright_id":"0xf5d3d9616448c8a4d645fab684844e20bc1ed4aadb39d7dc5591d1d11fa71f95","isrc":"GBKPL1831655","name":"Pearl Magnolia - Daju Remix","registered_at":"2026-06-20T02:12:39Z","spotify_id":"5oYRw8exmKcfSYR1rlJlQw","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5d3d9616448c8a4d645fab684844e20bc1ed4aadb39d7dc5591d1d11fa71f95. 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/5oYRw8exmKcfSYR1rlJlQw.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/5oYRw8exmKcfSYR1rlJlQw.
All The Way Up (feat. Lia Ices & Brasstracks)
{"copyright_id":"0x1a678b4ade030d26d284abd0aac00894d660c9536966129703493b20df82efb0","isrc":"USZ4V1500131","name":"All The Way Up (feat. Lia Ices & Brasstracks)","registered_at":"2026-06-20T21:47:30Z","spotify_id":"6vGepEPP2uGCSRQmISY5jd","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a678b4ade030d26d284abd0aac00894d660c9536966129703493b20df82efb0. 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/6vGepEPP2uGCSRQmISY5jd.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/6vGepEPP2uGCSRQmISY5jd.
And After That, We Didn't Talk - The Remixes
{"copyright_id":"0xace9d23429b664dcb79746ef50f6313d6ab39800406ac99bd143e470f6c09e7c","isrc":"USRC11601190","name":"Dance On Me - Brasstracks Remix","registered_at":"2026-06-21T20:23:24Z","spotify_id":"0WBE1WyngbsHTxaZ11WCJw","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xace9d23429b664dcb79746ef50f6313d6ab39800406ac99bd143e470f6c09e7c. 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/0WBE1WyngbsHTxaZ11WCJw.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/0WBE1WyngbsHTxaZ11WCJw.
{"copyright_id":"0x7481a3c7b7a674789110d4e2f84659eebe21ebf1f1794f24a6c5bb0d98cbc992","isrc":"USUM72010018","name":"Missed Your Call (feat. Col3trane)","registered_at":"2026-06-10T00:43:29Z","spotify_id":"24ExbADcI0ocOh9nj3ST0y","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7481a3c7b7a674789110d4e2f84659eebe21ebf1f1794f24a6c5bb0d98cbc992. 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/24ExbADcI0ocOh9nj3ST0y.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/24ExbADcI0ocOh9nj3ST0y.
Golden Ticket (feat. Masego & Common) - Jarreau Vandal Remix
{"copyright_id":"0x5d73b98652ee1ceb20efb9f6816dcdc054c93827ad25d5ef4d03a82762b0229a","isrc":"USUM72018045","name":"Golden Ticket (feat. Masego & Common) - Jarreau Vandal Remix","registered_at":"2026-06-20T02:10:35Z","spotify_id":"635RdIGruLSPftwtbEqAaY","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d73b98652ee1ceb20efb9f6816dcdc054c93827ad25d5ef4d03a82762b0229a. 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/635RdIGruLSPftwtbEqAaY.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/635RdIGruLSPftwtbEqAaY.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3ad79d8015cc1cf20595562ccddf4b63724370566b2807693521c365bd9a272. 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/3BsUs3wh9YqEHNMPEOuiMr.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/3BsUs3wh9YqEHNMPEOuiMr.
{"copyright_id":"0x79809d3896f6feb0d7b062c1d01943867ba3eec95b8a192b499321eb8116ffae","isrc":"FRU701601002","name":"Nobody Else - Pat Lok Remix","registered_at":"2026-06-19T08:01:32Z","spotify_id":"4xQlBycsioL2tCGaE8z0y1","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79809d3896f6feb0d7b062c1d01943867ba3eec95b8a192b499321eb8116ffae. 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/4xQlBycsioL2tCGaE8z0y1.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/4xQlBycsioL2tCGaE8z0y1.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf17466cb870d02c08667b636189dfa422c8104459e4ab3e8d6ee8678dd526329. 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/29aHLkN2TNG0to6UJbo5Ao.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/29aHLkN2TNG0to6UJbo5Ao.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x834f6a31df11bd4fb3618deb2b41eb8e38f920620cc01e52cc0851478089ac16. 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/0ZERoED1XSbq25RjVtifaL.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/0ZERoED1XSbq25RjVtifaL.
{"copyright_id":"0xf31d16b745f7ca5a0f49fd4c67c8126cd6605edac1c8578ff05998f79c24408c","isrc":"USQY51766105","name":"Gotta Push On - Barclay Crenshaw Remix","registered_at":"2026-06-25T15:42:59Z","spotify_id":"5gSjfaBzdoJ8XpPClFU6CI","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf31d16b745f7ca5a0f49fd4c67c8126cd6605edac1c8578ff05998f79c24408c. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5gSjfaBzdoJ8XpPClFU6CI.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/5gSjfaBzdoJ8XpPClFU6CI.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45daa4314600a1b02e6e893946ce5ae9f6e25dc7d7a7f040ccc64345a9c17808. 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/1PT03zQv9YRAYFt8BzgiSS.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/1PT03zQv9YRAYFt8BzgiSS.