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 0x416931c2a0cec58a78e7f27fc0dd1b6dfe3edfbcfe29c3158ebf9eb4fca3707d. 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/098692cb-7c40-4e0f-8799-5128f44db94e.json and https://artists.proofprofile.net/proofs/artist/098692cb-7c40-4e0f-8799-5128f44db94e.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 0xac28317f8404fdeec909d3c267c82576885c40ee2889724e9e1b2b1874998c2c. 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/6zNwT6vy0bOSKoLui2HtRK.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/6zNwT6vy0bOSKoLui2HtRK.
{"copyright_id":"0x9c12360459078c4f7a49c37056c4fbbc5d71fe84641eaedbed03d89ba8cc1ae6","isrc":"QZQRH2100003","name":"Little Bitty Town","registered_at":"2026-06-23T21:58:28Z","spotify_id":"4BN3ByKAyd7godDr32DcMz","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c12360459078c4f7a49c37056c4fbbc5d71fe84641eaedbed03d89ba8cc1ae6. 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/4BN3ByKAyd7godDr32DcMz.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/4BN3ByKAyd7godDr32DcMz.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91be541d8ac5b68533764ebea335edb8e3b297fea979609e2b44f0e778f79866. 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/6tSD5NowB0tpJgAmSb7NUS.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/6tSD5NowB0tpJgAmSb7NUS.
{"copyright_id":"0xb7f1115e7811bcdef5eeaf4c4f28e07aaaae16a5bfb8e51d0d0ef80237355899","isrc":"QZQRH2100012","name":"High, Drunk, and Heartbroke","registered_at":"2026-06-21T10:35:43Z","spotify_id":"7bWhGhhbMew2ykXKYJVZ70","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7f1115e7811bcdef5eeaf4c4f28e07aaaae16a5bfb8e51d0d0ef80237355899. 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/7bWhGhhbMew2ykXKYJVZ70.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/7bWhGhhbMew2ykXKYJVZ70.
Where The Good Ones Go (feat. Jake Owen)
{"copyright_id":"0x7afac2a192c003f79316df8fddabdf7c366bfa8d12a6fb0fee7944e130a0f5c9","isrc":"USUYG1549022","name":"Where The Good Ones Go (feat. Jake Owen)","registered_at":"2026-06-08T06:38:09Z","spotify_id":"4qBdkbrHXpS7RcaINDQXyj","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7afac2a192c003f79316df8fddabdf7c366bfa8d12a6fb0fee7944e130a0f5c9. 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/4qBdkbrHXpS7RcaINDQXyj.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/4qBdkbrHXpS7RcaINDQXyj.
{"copyright_id":"0xda1751db222d6881cc90823f28f277e33c5f18da6f7c8ed29feaf6006e663de0","isrc":"USUYG1537758","name":"Never Got Around To That","registered_at":"2026-06-24T07:24:29Z","spotify_id":"3M91znzrtugbIuaLeXONgC","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda1751db222d6881cc90823f28f277e33c5f18da6f7c8ed29feaf6006e663de0. 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/3M91znzrtugbIuaLeXONgC.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/3M91znzrtugbIuaLeXONgC.
{"copyright_id":"0xd524f0f40380d36891a61a1aad6183f9eb57b5a4e4185f9baccf4420f047fe4e","isrc":"USUYG1534333","name":"Wild Than Tame","registered_at":"2026-06-26T03:57:58Z","spotify_id":"2krOhQexsy4onw9lK6X4nF","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd524f0f40380d36891a61a1aad6183f9eb57b5a4e4185f9baccf4420f047fe4e. 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/2krOhQexsy4onw9lK6X4nF.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/2krOhQexsy4onw9lK6X4nF.
{"copyright_id":"0x5b5aeeb61c2d5eb6982eaa8eafe22569f5f29bbb6c44c07f7d80a3b2488907ef","isrc":"USUYG1518979","name":"I Still Do","registered_at":"2026-06-22T11:41:22Z","spotify_id":"3nfUkmJOxXaveHQfCDuScs","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b5aeeb61c2d5eb6982eaa8eafe22569f5f29bbb6c44c07f7d80a3b2488907ef. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3nfUkmJOxXaveHQfCDuScs.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/3nfUkmJOxXaveHQfCDuScs.
{"copyright_id":"0x5b5aeeb61c2d5eb6982eaa8eafe22569f5f29bbb6c44c07f7d80a3b2488907ef","isrc":"USUYG1518979","name":"I Still Do","registered_at":"2026-06-22T11:41:22Z","spotify_id":"19baHhgBJDT3gsDbflSiJh","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b5aeeb61c2d5eb6982eaa8eafe22569f5f29bbb6c44c07f7d80a3b2488907ef. 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/19baHhgBJDT3gsDbflSiJh.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/19baHhgBJDT3gsDbflSiJh.
{"copyright_id":"0xac28317f8404fdeec909d3c267c82576885c40ee2889724e9e1b2b1874998c2c","isrc":"QZQRH2100002","name":"Think About That","registered_at":"2026-06-09T00:14:50Z","spotify_id":"0ZKJTquGSbkNpgTlQBWXAD","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac28317f8404fdeec909d3c267c82576885c40ee2889724e9e1b2b1874998c2c. 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/0ZKJTquGSbkNpgTlQBWXAD.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/0ZKJTquGSbkNpgTlQBWXAD.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91be541d8ac5b68533764ebea335edb8e3b297fea979609e2b44f0e778f79866. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2wQGPKHa3PzEZ3gG5yVa6n.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/2wQGPKHa3PzEZ3gG5yVa6n.
{"copyright_id":"0xb7f1115e7811bcdef5eeaf4c4f28e07aaaae16a5bfb8e51d0d0ef80237355899","isrc":"QZQRH2100012","name":"High, Drunk, and Heartbroke","registered_at":"2026-06-21T10:35:43Z","spotify_id":"4p9D4xmZekyDDQdj7E7t1W","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7f1115e7811bcdef5eeaf4c4f28e07aaaae16a5bfb8e51d0d0ef80237355899. 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/4p9D4xmZekyDDQdj7E7t1W.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/4p9D4xmZekyDDQdj7E7t1W.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f2b481953af05ab2af1f1746b08f7528e7b027b1e2c0640ed2b70302b56a6de. 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/3Ih7J3vNiaoOZfkXCtEd7j.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/3Ih7J3vNiaoOZfkXCtEd7j.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x310fd4418327b7b60491a295b88509f34717c0cb77ede15fa03227dd2227dcc4. 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/0kA189yG7OhPzDDgXlmovO.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/0kA189yG7OhPzDDgXlmovO.
{"copyright_id":"0xd6e255ca2bb1bf2afe0eece7ff5e2b54b1d0e2e0c03ccd21d2313ddd7eab272d","isrc":"QMRSZ1700271","name":"Wayfarer Weather","registered_at":"2026-06-08T15:21:15Z","spotify_id":"0tKTKxPf00fFwnp5R1nmjP","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6e255ca2bb1bf2afe0eece7ff5e2b54b1d0e2e0c03ccd21d2313ddd7eab272d. 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/0tKTKxPf00fFwnp5R1nmjP.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/0tKTKxPf00fFwnp5R1nmjP.
{"copyright_id":"0xfeb3209b1a70dcdba6a36f5fbfba03109b90b402b382089c9cdd4f2eb8657103","isrc":"QMRSZ1700269","name":"Little Bit of You","registered_at":"2026-06-04T08:17:18Z","spotify_id":"7a3XRLkMcey2dexkB4sC8O","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeb3209b1a70dcdba6a36f5fbfba03109b90b402b382089c9cdd4f2eb8657103. 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/7a3XRLkMcey2dexkB4sC8O.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/7a3XRLkMcey2dexkB4sC8O.
{"copyright_id":"0xb84a9c238bcfc1ae80b728cadd3e1d2910ee69e85eeade10f83f344d938f2806","isrc":"QMRSZ1700268","name":"Change Your Name","registered_at":"2026-06-06T06:51:28Z","spotify_id":"6EvSnwmlTVaVE0k4Kpjkwp","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb84a9c238bcfc1ae80b728cadd3e1d2910ee69e85eeade10f83f344d938f2806. 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/6EvSnwmlTVaVE0k4Kpjkwp.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/6EvSnwmlTVaVE0k4Kpjkwp.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x819c474aa3e02da1244c5e452778ba965e6270d878f5e88759525d480aa8de6c. 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/7MxR1SrdFDPHBuUMTrI07g.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/7MxR1SrdFDPHBuUMTrI07g.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa710f0af7c9135c7b990f7914e216937c501f6fa29844b75ea62496c0a2bf169. 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/5diaZoBVu3UizxlW8V9Lwc.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/5diaZoBVu3UizxlW8V9Lwc.