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 0x608c993b9b704cf0f46460500acb33a15e9f364d6428739c2d8b717fb3eb3833. 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/2691b79e-ab1d-47ec-b703-29b44799399a.json and https://artists.proofprofile.net/proofs/artist/2691b79e-ab1d-47ec-b703-29b44799399a.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 0xeda0ffa5c4055495314b727c88305aa286b3f659ec94035cb0e85d77726722cd. 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/0K4etmnBqe0Pgn2aiyL5ws.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/0K4etmnBqe0Pgn2aiyL5ws.
Playero 41: Past Present & Future, Pt. 1
{"copyright_id":"0xfe33b40282fd59d32ad5c4163d4611977c586178eda4e6ff2a51bbd28a944935","isrc":"USDHM1004454","name":"Bailando Quiero Verlas","registered_at":"2026-06-05T09:02:57Z","spotify_id":"3RXjfaVc992XJhSswukx4v","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe33b40282fd59d32ad5c4163d4611977c586178eda4e6ff2a51bbd28a944935. 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/3RXjfaVc992XJhSswukx4v.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/3RXjfaVc992XJhSswukx4v.
{"copyright_id":"0x2927b25199c00cb2bb3645e5d348441c9931d6bf179bbed62aca0d5c77b830bf","isrc":"USWL11600301","name":"No la cruces (feat. Tempo & Farruko)","registered_at":"2026-06-05T13:16:26Z","spotify_id":"1MLb94OnzRVBfsEZ1dKzKv","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2927b25199c00cb2bb3645e5d348441c9931d6bf179bbed62aca0d5c77b830bf. 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/1MLb94OnzRVBfsEZ1dKzKv.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/1MLb94OnzRVBfsEZ1dKzKv.
{"copyright_id":"0x38cfccf3f5428d0c8f0d79bea67a08c90fba5feb53f03ea7fc97d4b610233752","isrc":"US3B90800019","name":"Mi Primera Canción","registered_at":"2026-06-05T20:40:37Z","spotify_id":"4jTtj2VtWrxgeE7H9XTAsB","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38cfccf3f5428d0c8f0d79bea67a08c90fba5feb53f03ea7fc97d4b610233752. 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/4jTtj2VtWrxgeE7H9XTAsB.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/4jTtj2VtWrxgeE7H9XTAsB.
Siempre Seré (feat. Secreto El Famoso Biberón & Pacho El Antifeka)
{"copyright_id":"0x3915bab1ef56deede2e4c1167a989b094662567c5f9af1bb68dfd03a5b1f476e","isrc":"USSD12100713","name":"Siempre Seré (feat. Secreto El Famoso Biberón & Pacho El Antifeka)","registered_at":"2026-06-05T11:47:30Z","spotify_id":"3AbJqOEvApkTuFKl1cIzTK","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3915bab1ef56deede2e4c1167a989b094662567c5f9af1bb68dfd03a5b1f476e. 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/3AbJqOEvApkTuFKl1cIzTK.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/3AbJqOEvApkTuFKl1cIzTK.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdb9c91cd327f290364f330514b08e2eee6fac51a8603943a2754767c75ee967. 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/5v27LPrs5gHeeLLw25VsCg.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/5v27LPrs5gHeeLLw25VsCg.
Lejos de la Muerte [Replacement Killers]
{"copyright_id":"0x94141243bb416fd8f513352b668db9f6029f19b93e04163729f0fd69966d9763","isrc":"USDHM1012908","name":"Lejos de la Muerte [Replacement Killers]","registered_at":"2026-06-11T04:12:30Z","spotify_id":"1rX5hEX0L58Atr3LVmzqMt","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94141243bb416fd8f513352b668db9f6029f19b93e04163729f0fd69966d9763. 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/1rX5hEX0L58Atr3LVmzqMt.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/1rX5hEX0L58Atr3LVmzqMt.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39aa8e8958b640120809cdf847405de012dbc9afdcf782953217f8aaf033467e. 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/2NG79b6Kw2pqCZze53d6nO.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/2NG79b6Kw2pqCZze53d6nO.
{"copyright_id":"0x4dd3e60bd23568bc5992c91f11b4ba0bbf57a6b69447a0070b5da7a6fc6af5c8","isrc":"USDHM1012907","name":"Dreamteam Killers","registered_at":"2026-06-17T22:30:58Z","spotify_id":"3QiN5Hi5X16zfIJLr43jWU","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dd3e60bd23568bc5992c91f11b4ba0bbf57a6b69447a0070b5da7a6fc6af5c8. 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/3QiN5Hi5X16zfIJLr43jWU.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/3QiN5Hi5X16zfIJLr43jWU.
{"copyright_id":"0x1b747ef47dd2e79353021dede1b091de2be00bb7b1d580aa98dedff29a8d2231","isrc":"QM4TW2026240","name":"Van a Ver Lo Que Es Muerte","registered_at":"2026-06-25T23:11:19Z","spotify_id":"2fgVO5rKnoSrBTobEpni2T","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b747ef47dd2e79353021dede1b091de2be00bb7b1d580aa98dedff29a8d2231. 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/2fgVO5rKnoSrBTobEpni2T.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/2fgVO5rKnoSrBTobEpni2T.
{"copyright_id":"0x65769c531eaffbf0adca597ba334dbbd258e5462ad81951bb7bfe50f0f401732","isrc":"USDHM1004461","name":"Radio Version 1","registered_at":"2026-06-18T17:35:06Z","spotify_id":"2N5zIXcPr86RFLMAyVbFnN","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65769c531eaffbf0adca597ba334dbbd258e5462ad81951bb7bfe50f0f401732. 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/2N5zIXcPr86RFLMAyVbFnN.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/2N5zIXcPr86RFLMAyVbFnN.
{"copyright_id":"0xab90f65d9f419f079854388db692ff27d92ea379d1ee3a3a580396d6e5bdfe13","isrc":"ZZOPM2239696","name":"Me Rendí","registered_at":"2026-06-20T08:48:03Z","spotify_id":"2IDdRPsbxhgbEIwKcwup6S","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab90f65d9f419f079854388db692ff27d92ea379d1ee3a3a580396d6e5bdfe13. 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/2IDdRPsbxhgbEIwKcwup6S.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/2IDdRPsbxhgbEIwKcwup6S.
Underground Reggaeton "The Best Of Radio Version", Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0c506640e40fb1121a3bfd79821b11cc201334508d440ff7854b426c0274819. 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/6KyEeuXg01fEtmtEocLxed.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/6KyEeuXg01fEtmtEocLxed.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x361a80b4da9ecbd0d9671ae9707ed67ec7a353df3cec79f53510681d180485c9. 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/4C7XpvKY2x9yuHW37gyrI8.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/4C7XpvKY2x9yuHW37gyrI8.
{"copyright_id":"0x3b967c5257252cf1ea4dd0ea20ef22b8d7bf08d6bbadee6e2a588cb985f0d1a5","isrc":"QMDA71854625","name":"Cuidao - Reggaeton Version","registered_at":"2026-06-07T19:11:52Z","spotify_id":"4G61TQ7Co3tVXOtAyXsipc","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b967c5257252cf1ea4dd0ea20ef22b8d7bf08d6bbadee6e2a588cb985f0d1a5. 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/4G61TQ7Co3tVXOtAyXsipc.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/4G61TQ7Co3tVXOtAyXsipc.
{"copyright_id":"0x7a4945dc5ee6aea0b23d4aa3b1f98aba68c7b52e1f5255d32b09a5b3f6269e90","isrc":"QMDA71854637","name":"Cuidao - Rap Version","registered_at":"2026-06-04T11:45:36Z","spotify_id":"0Jq7O4N9FhnP8R6nyySCG5","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a4945dc5ee6aea0b23d4aa3b1f98aba68c7b52e1f5255d32b09a5b3f6269e90. 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/0Jq7O4N9FhnP8R6nyySCG5.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/0Jq7O4N9FhnP8R6nyySCG5.
Free Tempo Remix (feat. MC Ceja, Mexicano & Getto y Gastam)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab90f65d9f419f079854388db692ff27d92ea379d1ee3a3a580396d6e5bdfe13. 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/31QmCF7GTYtm2da7dY8L68.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/31QmCF7GTYtm2da7dY8L68.