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 0x9826091348b97da14fcca4a0a2a6e537427fe1d3c1f81e5a8b10af112f4c9e51. 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/b5d9dac8-21d7-4a4d-92c3-3a405e4306a0.json and https://artists.proofprofile.net/proofs/artist/b5d9dac8-21d7-4a4d-92c3-3a405e4306a0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xb36b15758851af6b2ba58c5ceec8ae6c362755eea05b8caca2e264b8352120ce","isrc":"QZEQU2127829","name":"Na Grades do Tempo","registered_at":"2026-06-29T14:51:01Z","spotify_id":"7psXrhP6BGbaQ8jl8hMfFC","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 0xb36b15758851af6b2ba58c5ceec8ae6c362755eea05b8caca2e264b8352120ce. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7psXrhP6BGbaQ8jl8hMfFC.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/7psXrhP6BGbaQ8jl8hMfFC.
Irresistível Paixão (feat. Adriana Farias)
Caçador de Amor ⧸ Mergulhado na Saudade ⧸ Na Voz do Vento
Viola Pagodeira ⧸ Pagode do Grotão ⧸ Rodeio Universitário
Tonelada de Paixão (feat. Adriana Farias)
Entre o Rodeio e Você (feat. Juliano Cesar)
Irresistível Paixão (feat. Alan e Aladim)
Caçador de Amor / Mergulhado na Saudade / Na Voz do Vento
Viola Pagodeira / Pagode do Grotão / Rodeio Universitario
Paixão de Tonelada (feat. Adriana Farias)
Paixão Não Maltrate (feat. Araguaia & Fabricio Viola)
{"copyright_id":"0xcc74af770b46fb2f17346038874151bc7dbd80829f60018f5e8339d34352b207","isrc":"QZEQU2127861","name":"Casal Sem Juízo (feat. Jads e Jadson)","registered_at":"2026-06-29T05:00:13Z","spotify_id":"1nkfu9HDiQBLpges4k1DjY","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc74af770b46fb2f17346038874151bc7dbd80829f60018f5e8339d34352b207. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1nkfu9HDiQBLpges4k1DjY.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/1nkfu9HDiQBLpges4k1DjY.
{"copyright_id":"0x603fb944d31167e33eaac9ffd8ad5e6f97b7c58e3781705dab3102ab2f4c5834","isrc":"QZEQU2127875","name":"Paixão Não Maltrate (feat. Araguaia & Fabricio Viola)","registered_at":"2026-06-29T04:58:10Z","spotify_id":"1cYdKVNWCxML8dV2oNWP6m","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x603fb944d31167e33eaac9ffd8ad5e6f97b7c58e3781705dab3102ab2f4c5834. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1cYdKVNWCxML8dV2oNWP6m.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/1cYdKVNWCxML8dV2oNWP6m.
Viola Pagodeira / Pagode do Grotão / Rodeio Universitário
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d884c06a0613612d3e6802d3baf3a0e5c16fe158d6e5d78fa624c9a05751a22. 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/3V7ufiOZre2puCWPCY8gYv.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/3V7ufiOZre2puCWPCY8gYv.