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 0x66aa70870d1c77629918dda9ffda1d9e3fad2800f362904dc06c0064332a48e3. 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/8519aeca-fab1-4fea-be83-5e561852d867.json and https://artists.proofprofile.net/proofs/artist/8519aeca-fab1-4fea-be83-5e561852d867.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Seu Gostoso, Rebola e Joga (feat. Mc Ka de Paris & Dj Novinho do Jaca)
{"copyright_id":"0xa214d89ff4bdbbaba0d09d7146e9a34600104f86c65014c5676b7e562517d14a","isrc":"QZEQU2061335","name":"Seu Gostoso, Rebola e Joga (feat. Mc Ka de Paris & Dj Novinho do Jaca)","registered_at":"2026-06-05T16:56:21Z","spotify_id":"2lyXQUTRVDuyU5ensWbaCn","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 0xa214d89ff4bdbbaba0d09d7146e9a34600104f86c65014c5676b7e562517d14a. 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/2lyXQUTRVDuyU5ensWbaCn.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/2lyXQUTRVDuyU5ensWbaCn.
Seu Gostoso, Rebola e Joga (feat. Mc Ká de Paris, Dj Novinho do Jaca & DJ Lula do Jaca)
{"copyright_id":"0x58626ec130eac1a94c515b9a55baa1deb1063d31eb04a2cc0bd984d3066c6e3f","isrc":"QZNJV2091814","name":"Seu Gostoso, Rebola e Joga (Light)","registered_at":"2026-06-11T10:36:00Z","spotify_id":"6WIZtqJtq3lm1T7d5bLAcW","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58626ec130eac1a94c515b9a55baa1deb1063d31eb04a2cc0bd984d3066c6e3f. 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/6WIZtqJtq3lm1T7d5bLAcW.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/6WIZtqJtq3lm1T7d5bLAcW.
{"copyright_id":"0x0d35065c2098fe091ad8280b81077fe92a42ae98a5e7e03d323abb4495a6afe5","isrc":"BX0GW2200003","name":"Tropa dos Faixa Preta","registered_at":"2026-06-29T05:04:55Z","spotify_id":"4mAFjyGCRGvcFnScwltcaP","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d35065c2098fe091ad8280b81077fe92a42ae98a5e7e03d323abb4495a6afe5. 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/4mAFjyGCRGvcFnScwltcaP.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/4mAFjyGCRGvcFnScwltcaP.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x632f09fed7fb78d761cf210690173bf00bdde1d8f307043b6566b4686b0822d1. 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/3E577vzF3hHVrVZH9aPu1w.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/3E577vzF3hHVrVZH9aPu1w.
{"copyright_id":"0xb638380f01635517a020134a5bbfc56eeec3846e788d5aa3d9ed78647dd3ebbb","isrc":"BKFUX2301802","name":"Ronca Passarinho","registered_at":"2026-06-18T16:14:45Z","spotify_id":"7EApGES4TVtxUwogBO3HRy","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb638380f01635517a020134a5bbfc56eeec3846e788d5aa3d9ed78647dd3ebbb. 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/7EApGES4TVtxUwogBO3HRy.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/7EApGES4TVtxUwogBO3HRy.
{"copyright_id":"0x936b1b3c645a63d194b316a0cc297eaae780a9b2374247cdd5e6b07ec87d9ce4","isrc":"BXQZW2400017","name":"Baile de Corredor","registered_at":"2026-06-20T02:08:26Z","spotify_id":"4JB9ZGL8jv0KV9BCZoaBWN","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x936b1b3c645a63d194b316a0cc297eaae780a9b2374247cdd5e6b07ec87d9ce4. 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/4JB9ZGL8jv0KV9BCZoaBWN.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/4JB9ZGL8jv0KV9BCZoaBWN.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27527fbf026440acacfbd0b284378a75c03eea7032787c99c58a02dec03c4e9b. 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/5WzKvIMbCRZn3epiBxrYig.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/5WzKvIMbCRZn3epiBxrYig.
Hoje Nós Vai Tacar (feat. É O CAVERINHA)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb0847a453c832e192e3d07cf7c0b1763ed6537574be07f69808f7f99650e1ed. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7lKhXB2F3lLsdHFeMCRop3.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/7lKhXB2F3lLsdHFeMCRop3.