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 0xbedf322d896c70af40b33376be85eca1ec36e71ea2bc3008c15791c99ffc2da5. 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/15d119c1-a061-4b61-bfcd-1fbfdec61905.json and https://artists.proofprofile.net/proofs/artist/15d119c1-a061-4b61-bfcd-1fbfdec61905.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 0x64fd1231a3e1ac7511d53f19b2601b62441f3ff5deba6cfde31bdf49f3120290. 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/4xqvO2Gre94zX4NZd1aIp2.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/4xqvO2Gre94zX4NZd1aIp2.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8255294bc96a612463e0ebf892000e3048edb2e6f91ff676f9ffb6a106f712e2. 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/2uTniZ5v1J98gGAzrcR9nm.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/2uTniZ5v1J98gGAzrcR9nm.
{"copyright_id":"0xb20e274cca545efc9219dc19aca448415d736615e302d4dcd25aead6a9f9fb75","isrc":"BCBA42000011","name":"Suco de Fruta 2","registered_at":"2026-06-09T17:39:20Z","spotify_id":"4vRfWUDyNArLqk2YSV3G9q","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb20e274cca545efc9219dc19aca448415d736615e302d4dcd25aead6a9f9fb75. 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/4vRfWUDyNArLqk2YSV3G9q.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/4vRfWUDyNArLqk2YSV3G9q.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x438d866f5d20e0798a57c8e076e9b65b899e26b33ef6c05d082d65937cdf1eb7. 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/6RjwF8vptvEfYdHdVPgP15.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/6RjwF8vptvEfYdHdVPgP15.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47f33c0e6ca20dbb02ae6381e35c78bf85022fd84f0a245e06e907b5b320a4cd. 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/2Y8Ed1uZAx9GYm6U3Zv46v.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/2Y8Ed1uZAx9GYm6U3Zv46v.
Flow Mexicano (feat. Mikezin, Greezy, ÉoDan & GRAV)
{"copyright_id":"0x00fdc737ea05821fbf48df018f5943aaf7a89dd1608aee6be86d65348f6b9e9e","isrc":"BC2GV2290003","name":"Flow Mexicano (feat. Mikezin, Greezy, ÉoDan & GRAV)","registered_at":"2026-06-04T12:27:15Z","spotify_id":"6zi2WTKufm9qmiGnISPVx9","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00fdc737ea05821fbf48df018f5943aaf7a89dd1608aee6be86d65348f6b9e9e. 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/6zi2WTKufm9qmiGnISPVx9.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/6zi2WTKufm9qmiGnISPVx9.
{"copyright_id":"0x2bb327c26ffd07a4c3402e9dc9e8fdfff48a56f46a1117e106b32244ed4b195d","isrc":"BC2GV2200010","name":"Tropa do Enguiça","registered_at":"2026-06-23T14:07:18Z","spotify_id":"2oE26v6jhi6Oi2MtRLagds","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bb327c26ffd07a4c3402e9dc9e8fdfff48a56f46a1117e106b32244ed4b195d. 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/2oE26v6jhi6Oi2MtRLagds.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/2oE26v6jhi6Oi2MtRLagds.
{"copyright_id":"0xa61892daddfd549a6b7458ccd7bb47151d1dca6f80b7cd473f24be88f5f36fce","isrc":"BRGRA2110001","name":"Holofotes (feat. GRAV & VMZ)","registered_at":"2026-06-10T17:34:24Z","spotify_id":"77t6igTj7mcwuZgOiMK7cD","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa61892daddfd549a6b7458ccd7bb47151d1dca6f80b7cd473f24be88f5f36fce. 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/77t6igTj7mcwuZgOiMK7cD.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/77t6igTj7mcwuZgOiMK7cD.
{"copyright_id":"0x3789d3d96ff6f3f2947dedf7da531be461990cfe6eefa7652db973206ed66fa8","isrc":"BRGRA2110002","name":"Cilada (feat. Greezy & GRAV)","registered_at":"2026-06-11T10:07:46Z","spotify_id":"00m4JTC6Xbr9lJ9ZRAzsnJ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3789d3d96ff6f3f2947dedf7da531be461990cfe6eefa7652db973206ed66fa8. 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/00m4JTC6Xbr9lJ9ZRAzsnJ.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/00m4JTC6Xbr9lJ9ZRAzsnJ.
{"copyright_id":"0x8f613edf839b3cffce8d5b88d25ee90419ab10779c2a1888bfec0becd5c4c9d1","isrc":"BRGRA2110003","name":"Party (feat. Aimar, Greezy & GRAV)","registered_at":"2026-06-20T06:19:16Z","spotify_id":"2kLmENeiJUO4kMu1xkp2wh","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f613edf839b3cffce8d5b88d25ee90419ab10779c2a1888bfec0becd5c4c9d1. 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/2kLmENeiJUO4kMu1xkp2wh.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/2kLmENeiJUO4kMu1xkp2wh.
{"copyright_id":"0x30da2da97f693479517def9da200e9aa598901f27c709f1c84aefdff9033fbae","isrc":"BRGRA2110004","name":"Tipo Billie Jean (feat. MHRAP & GRAV)","registered_at":"2026-06-07T19:58:30Z","spotify_id":"6QkRZKvEr7J2tOr0YzORIa","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30da2da97f693479517def9da200e9aa598901f27c709f1c84aefdff9033fbae. 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/6QkRZKvEr7J2tOr0YzORIa.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/6QkRZKvEr7J2tOr0YzORIa.
{"copyright_id":"0x5fe310a40a2885aa7c1621ee6dec6a1c6d2ff42e032974b8fe4a34881b02c396","isrc":"BC2GV2100063","name":"Jacaré de Estimação (feat. GRAV)","registered_at":"2026-06-10T17:33:42Z","spotify_id":"1hYFMFb9T3qQsQeveqC0O3","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fe310a40a2885aa7c1621ee6dec6a1c6d2ff42e032974b8fe4a34881b02c396. 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/1hYFMFb9T3qQsQeveqC0O3.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/1hYFMFb9T3qQsQeveqC0O3.
{"copyright_id":"0x4fc75101af88ea630b4067bff1af79df3f70ab4ec36815c2ce32ed9ae111aef7","isrc":"SE6HN2182035","name":"Capital Girando","registered_at":"2026-06-11T10:07:48Z","spotify_id":"0wRRmPXRL1kjKQtLpdOfUV","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fc75101af88ea630b4067bff1af79df3f70ab4ec36815c2ce32ed9ae111aef7. 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/0wRRmPXRL1kjKQtLpdOfUV.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/0wRRmPXRL1kjKQtLpdOfUV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0043c258d4ae720411016411dc064f673820a09239bd6a3455318de281d8006a. 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/3UskzQ6ZtfpyFSAcEQP6Og.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/3UskzQ6ZtfpyFSAcEQP6Og.