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 0xdfca95d93e506d2bb3a1994807d10074553522d9b16887c849750debaf9f3541. 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/905c6714-99b9-4b59-b8c7-0bab4103f076.json and https://artists.proofprofile.net/proofs/artist/905c6714-99b9-4b59-b8c7-0bab4103f076.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x5cbf56c855caa5ecb5551c818df4afe20b16d248bbd2d506e8d2d86d5155c63e","isrc":"QZW9N2256965","name":"Quiere Ma - Remix","registered_at":"2026-06-05T17:19:56Z","spotify_id":"65WpsQZhXNUID1dYcc8ZsY","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 0x5cbf56c855caa5ecb5551c818df4afe20b16d248bbd2d506e8d2d86d5155c63e. 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/65WpsQZhXNUID1dYcc8ZsY.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/65WpsQZhXNUID1dYcc8ZsY.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x187586f046db195bed046a3c4e517cad66752591dbf09874f5e5b8d47d490e77. 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/0Y7p5kcDBhPNbSadfLPW0H.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/0Y7p5kcDBhPNbSadfLPW0H.
{"copyright_id":"0x85b24e0ae13c6a0d2766ac9f2566c75db2f6e1e22bb5276e20ed6c5cadc07c02","isrc":"QZW9L2494455","name":"Shikipla - Remix Remastered","registered_at":"2026-06-08T20:08:58Z","spotify_id":"5ojgGIIUjdWY8ZYqXvgE5p","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85b24e0ae13c6a0d2766ac9f2566c75db2f6e1e22bb5276e20ed6c5cadc07c02. 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/5ojgGIIUjdWY8ZYqXvgE5p.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/5ojgGIIUjdWY8ZYqXvgE5p.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d55dd4584cf5d9ab5bc932b9c9892dc5d8f754a18aa1bc24c8501a13c15f023. 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/4S0KDBMb6F1r1qMSuvqxOF.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/4S0KDBMb6F1r1qMSuvqxOF.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05364ee41df236b02391aac4e93931f23e8875eba9dc65149b9684c2e63f0de6. 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/1731qvf2uzKA9xeIACjUpd.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/1731qvf2uzKA9xeIACjUpd.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3be41eb5ccaa9cbe519d58ec1f905b80a46b63414a119e95014946dcbfa85a3a. 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/2JtLH5rIp2ug6nALGqQ9CZ.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/2JtLH5rIp2ug6nALGqQ9CZ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04eed8ca9823688bba5741d501ff36aaf50706cab07af19c4e0d44955b009080. 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/1TwpwJxeLcLsDi5NY2LRzX.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/1TwpwJxeLcLsDi5NY2LRzX.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34f7985b0b438b44c6047aba890d7eb83b92c6ef43fc1f1b16f5bab2e7402f0c. 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/0lZhtRVVcnuqDPc2Lv43gs.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/0lZhtRVVcnuqDPc2Lv43gs.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32446463cc04bcc0e93b45f8566ea879253caa4edf7df7ee3c85c0d3df2b4509. 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/65MGzLJt1K1T4t526eVgi5.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/65MGzLJt1K1T4t526eVgi5.
{"copyright_id":"0x4da936d093a83a3c41856789eca2b752a9cdb8f89e28382990fdd35c5bcbc21b","isrc":"QZW9L2207758","name":"Dias Tristes","registered_at":"2026-06-05T13:44:08Z","spotify_id":"4cZkpBeSlo7fMPNFFIyRAW","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4da936d093a83a3c41856789eca2b752a9cdb8f89e28382990fdd35c5bcbc21b. 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/4cZkpBeSlo7fMPNFFIyRAW.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/4cZkpBeSlo7fMPNFFIyRAW.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x798779f09fe135b8e7ce94d0e8ec232d1ca8dc2716636b6c75fb4f4ae251933b. 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/4YaA745yPxjlDyLm1PXN3s.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/4YaA745yPxjlDyLm1PXN3s.
{"copyright_id":"0xfa7d1ada6932183e329d8ac7be1ddc51f962daa140fad948fecfc866088dc9b9","isrc":"QZTVM2256553","name":"Tu y Yo","registered_at":"2026-06-22T07:25:58Z","spotify_id":"12gi5QMscUIaY5kBALSwcq","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa7d1ada6932183e329d8ac7be1ddc51f962daa140fad948fecfc866088dc9b9. 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/12gi5QMscUIaY5kBALSwcq.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/12gi5QMscUIaY5kBALSwcq.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9b4beef70b607ba25d0fa50b7de70e442478d0c11a2c408971b87cef80f9afa. 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/6FwOa5AI9M871jfoFv9AVY.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/6FwOa5AI9M871jfoFv9AVY.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bac76a740761be9f15b66623cdeb0921d24a7bc48346cdcfe25e907495f7658. 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/2TDQmU76yO1Q6JTwGavZES.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/2TDQmU76yO1Q6JTwGavZES.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eb36986e7272164897ff5bfa75dae477fd3ff67596a5ac784f9c02205b12e53. 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/1OflgRgVKPymz48MAiXCEB.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/1OflgRgVKPymz48MAiXCEB.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee446ff1483ff65ccd288d64387a1d99d8bad139e484b3e229ec3e2d4879c39f. 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/2X7etJmsm4E4JayfAzfIYR.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/2X7etJmsm4E4JayfAzfIYR.
{"copyright_id":"0xd5ff4af4490e6ced781e2666d78a565e62097ed11def32cfc4b0c3f140d6b702","isrc":"QMDA62454853","name":"Flaite Pa Ti - Remix","registered_at":"2026-06-04T11:54:28Z","spotify_id":"1ybLFVVpQvQmfhRSENstil","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5ff4af4490e6ced781e2666d78a565e62097ed11def32cfc4b0c3f140d6b702. 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/1ybLFVVpQvQmfhRSENstil.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/1ybLFVVpQvQmfhRSENstil.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x412f93924d84af3513e90afb3b279a82d88d27427d1c7e49652edf37fad3e020. 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/3GVp56MAfi9uv59rCeVDzp.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/3GVp56MAfi9uv59rCeVDzp.
{"copyright_id":"0xbd14a839a78dea2cacd5426a3acb3ab8ea86d4f49d59789c62964f9beda9a412","isrc":"QZNJV2131455","name":"Salgo Nitido","registered_at":"2026-06-18T16:06:07Z","spotify_id":"1vEIzYzG2JK1qp8TQTdOpd","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd14a839a78dea2cacd5426a3acb3ab8ea86d4f49d59789c62964f9beda9a412. 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/1vEIzYzG2JK1qp8TQTdOpd.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/1vEIzYzG2JK1qp8TQTdOpd.
{"copyright_id":"0x011bd8a4545b79e4207f8bf4a4632033ca00cac36234882d0318b7b969baa4f9","isrc":"QZW9L2494693","name":"Tussy Huele - Remix (remastered )","registered_at":"2026-06-18T11:39:29Z","spotify_id":"0IkARBOrEcoDllCUOCg4k3","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x011bd8a4545b79e4207f8bf4a4632033ca00cac36234882d0318b7b969baa4f9. 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/0IkARBOrEcoDllCUOCg4k3.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/0IkARBOrEcoDllCUOCg4k3.
Dalo Todo 2 (feat. gabo el chamaquito, joukerr music, dunkan, Benji Gramitos, Dixson Waz, josepe el demente, adan la amenaza, Basty Corvalan & RF Music)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60cf0b2f833870618a85370a8094ea8425f48fb42571ba720234b26152f18d94. 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/4yuj79rU7GAiW3t9HXMoiu.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/4yuj79rU7GAiW3t9HXMoiu.
{"copyright_id":"0xc78ece5eadcc3129838231855cc7aa03362f004f80bff8012b3dfbf627f28ec3","isrc":"QZGLS2468530","name":"Hablame Claro - Remix","registered_at":"2026-06-18T16:09:58Z","spotify_id":"4eLDUvXoJEtJKqzxWqel3Y","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc78ece5eadcc3129838231855cc7aa03362f004f80bff8012b3dfbf627f28ec3. 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/4eLDUvXoJEtJKqzxWqel3Y.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/4eLDUvXoJEtJKqzxWqel3Y.
Fixxa (feat. Ben Bulgari, Benji Gramitos, Sayian Jimmy & Ac B) - Remix
Fixxa (feat. Ben Bulgari, Benji Gramitos, Sayian Jimmy & Ac B) [Remix]
{"copyright_id":"0x356b748562ef316eefa9e7f692a37c98f2ae59bdef25c718ed40abd52f16f271","isrc":"ZZOPM2238050","name":"Fixxa (feat. Ben Bulgari, Benji Gramitos, Sayian Jimmy & Ac B) - Remix","registered_at":"2026-06-24T13:19:26Z","spotify_id":"1LCfC1xuqDWxB8PA4MmGsP","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x356b748562ef316eefa9e7f692a37c98f2ae59bdef25c718ed40abd52f16f271. 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/1LCfC1xuqDWxB8PA4MmGsP.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/1LCfC1xuqDWxB8PA4MmGsP.
{"copyright_id":"0x3799cdf9339ee8e6b2e6cc98d40ecb4b487e051c40c0fccb2f1f306d08c04dc0","isrc":"USA2P2311107","name":"Mi Brillo","registered_at":"2026-06-04T08:52:51Z","spotify_id":"7yFMVnZ6rRGiqCAK3Mtitv","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3799cdf9339ee8e6b2e6cc98d40ecb4b487e051c40c0fccb2f1f306d08c04dc0. 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/7yFMVnZ6rRGiqCAK3Mtitv.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/7yFMVnZ6rRGiqCAK3Mtitv.
{"copyright_id":"0x1395c6e3366033d9f497914d7e1a8ee96efb3831995094c2396bfacb90a0deb8","isrc":"QZNJV2327650","name":"Alo Xoro Te Quiero","registered_at":"2026-06-20T21:36:56Z","spotify_id":"5Hckc2t5PzfDugRGSIc8lJ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1395c6e3366033d9f497914d7e1a8ee96efb3831995094c2396bfacb90a0deb8. 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/5Hckc2t5PzfDugRGSIc8lJ.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/5Hckc2t5PzfDugRGSIc8lJ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9faa24a4781f1712b4bb0b1197412eabe4742f5d0233647086dbeab31ca83fb6. 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/2RwyUVh8yZyM8QkzL9TFKj.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/2RwyUVh8yZyM8QkzL9TFKj.