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 0xdcaf5fff04a922d242469592c73c118dd0c7fea6e124531d6ff144face527f49. 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/10eaaa5b-5fe0-4972-a3d3-fab7785d2ae0.json and https://artists.proofprofile.net/proofs/artist/10eaaa5b-5fe0-4972-a3d3-fab7785d2ae0.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 0x71cde2a9f980b6bdca104ec1965d67bffdc9381d3b701c86199d8e0528ab47e5. 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/5VVA1cnqwNphtQ9bCvosvI.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/5VVA1cnqwNphtQ9bCvosvI.
Up Inna (Beam, Cham & Alicai Harley Remix)
{"copyright_id":"0x1eb7cd9ac658541000edc256b0c065409a3da679728b40109cb06b7dfdbbf902","isrc":"QM7282000585","name":"Up Inna (Beam, Cham & Alicai Harley Remix)","registered_at":"2026-06-06T10:03:50Z","spotify_id":"38aRO4YR1ZWLieQZSUMM3W","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eb7cd9ac658541000edc256b0c065409a3da679728b40109cb06b7dfdbbf902. 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/38aRO4YR1ZWLieQZSUMM3W.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/38aRO4YR1ZWLieQZSUMM3W.
{"copyright_id":"0xd7635fc874b89468ca1fa30575936c5f4435ab481f90c97182f72111b9e82b5e","isrc":"QZ2GW2300302","name":"Too Bad - GuiltyBeatz Remix","registered_at":"2026-06-09T12:41:18Z","spotify_id":"3HgdWmFgsbe2adnw6LwSeM","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7635fc874b89468ca1fa30575936c5f4435ab481f90c97182f72111b9e82b5e. 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/3HgdWmFgsbe2adnw6LwSeM.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/3HgdWmFgsbe2adnw6LwSeM.
{"copyright_id":"0x3dfad6c6e45900b8c1c0c6b04afe35ef735d564fcec9fa501dcacb63204d4d2f","isrc":"GBKPL2170043","name":"Dig Dig","registered_at":"2026-06-25T11:19:08Z","spotify_id":"7ilCVsvni3DcYP7V1K4amh","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dfad6c6e45900b8c1c0c6b04afe35ef735d564fcec9fa501dcacb63204d4d2f. 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/7ilCVsvni3DcYP7V1K4amh.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/7ilCVsvni3DcYP7V1K4amh.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb17af7c6d8e24b84269f6fae6996b6031df10173dd628bfc4ad698c61f7db86b. 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/6gdtj0OfMdvgCe0P35Vj4L.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/6gdtj0OfMdvgCe0P35Vj4L.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44b73805abf80ec4613c5b072492043ce681a1667dc5effda9815f8a8da482f2. 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/6LVQaE9vOEGxFKQ3tTWU0B.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/6LVQaE9vOEGxFKQ3tTWU0B.
{"copyright_id":"0x59757ddf5669b1a3b5a56ccfdd7413acbd23be27e51535417d925e2b9e4063e1","isrc":"QMDA72129326","name":"All of This - SANDAME Remix Pt. 1","registered_at":"2026-06-05T09:06:21Z","spotify_id":"1xnU6aQ18PX2PSAiAjdass","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59757ddf5669b1a3b5a56ccfdd7413acbd23be27e51535417d925e2b9e4063e1. 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/1xnU6aQ18PX2PSAiAjdass.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/1xnU6aQ18PX2PSAiAjdass.
{"copyright_id":"0x1b210a3e0ba9b58cdc3b47b155afa464b6c73f22b4c5ec049a32a81e99837c0b","isrc":"QMDA72164409","name":"All of This - SANDAME Remix Pt. 2","registered_at":"2026-06-07T20:56:35Z","spotify_id":"5QaTSqb8wmtkskwjzQI5bR","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b210a3e0ba9b58cdc3b47b155afa464b6c73f22b4c5ec049a32a81e99837c0b. 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/5QaTSqb8wmtkskwjzQI5bR.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/5QaTSqb8wmtkskwjzQI5bR.
All of This - DJ Supa D X Mr Taffa Remix
{"copyright_id":"0x8d04f8c91571801f8593ee93546ec1dd1cf34ea260a82b3f1ac997dcd8d6fb1d","isrc":"QMDA72129351","name":"All of This - DJ Supa D X Mr Taffa Remix","registered_at":"2026-06-09T09:16:07Z","spotify_id":"4VSMk5P7faEIP4m8LyC3jA","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d04f8c91571801f8593ee93546ec1dd1cf34ea260a82b3f1ac997dcd8d6fb1d. 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/4VSMk5P7faEIP4m8LyC3jA.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/4VSMk5P7faEIP4m8LyC3jA.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb41e45f035c00521514020508a9e05dc8842a8fa1602362e4a6aa35c21bf7d5d. 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/0DOtmC7j40TKOu8V7VaCkN.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/0DOtmC7j40TKOu8V7VaCkN.
{"copyright_id":"0x2dbb6a387114b33937bbb5396bbb62208da30aebaaf3e3c37e2c208a51532335","isrc":"QMDA72129466","name":"All of This - Mala Remix","registered_at":"2026-06-22T04:56:23Z","spotify_id":"5Q8bN98DYJG0aZPYkEQpym","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dbb6a387114b33937bbb5396bbb62208da30aebaaf3e3c37e2c208a51532335. 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/5Q8bN98DYJG0aZPYkEQpym.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/5Q8bN98DYJG0aZPYkEQpym.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf04874533a41af1cec154816173c861beeddf3ee83cabd94438acaebb159685b. 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/4FtudGtlv0c5SRyypjC19W.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/4FtudGtlv0c5SRyypjC19W.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x540f1855e7828d7e03638d9285ab730e94f4ee4a7015d8fe0d5b323453c403fd. 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/6JxhItwJ6AN4PF0F1QKEYb.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/6JxhItwJ6AN4PF0F1QKEYb.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa907d14ed9786c92206a20056995dd2521246a8445288cd0b5e06091ed8e3736. 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/4zM2HHEMkGGkbQfS05lNDT.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/4zM2HHEMkGGkbQfS05lNDT.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x536c26b946d7e43db521f9057f44753ffd3d66d4fdd976934a5d0898663eddc6. 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/2lKdQ0LAh4PUb6VbKUYFOH.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/2lKdQ0LAh4PUb6VbKUYFOH.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4b33e359a1a58463bc9220a980da38dc33144b372c347b40d3644982b031cd1. 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/7aIIJQ6LCP2oVfmpTQCou7.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/7aIIJQ6LCP2oVfmpTQCou7.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe16ddb08fba815c11db61d0c239d2592efeae4dcc97971a1218b55ee8a2695f. 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/6WIQ5I5BssinqHkuxYWHSw.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/6WIQ5I5BssinqHkuxYWHSw.
{"copyright_id":"0xe8b165581cffd4b303df6864912fdb2b78b47763a7da029c94a8cbcd86f99426","isrc":"QMBZ92425463","name":"Save Your Tears","registered_at":"2026-06-05T15:41:30Z","spotify_id":"46GFekGGrmoINYhMJInH4e","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8b165581cffd4b303df6864912fdb2b78b47763a7da029c94a8cbcd86f99426. 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/46GFekGGrmoINYhMJInH4e.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/46GFekGGrmoINYhMJInH4e.