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 0xcc5ace97e82263c5cb60bbf6a3a8e28a3762ca71e62cd43917f68b330be2c5d6. 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/34e8563c-08d2-49e7-9d58-3c67a68644aa.json and https://artists.proofprofile.net/proofs/artist/34e8563c-08d2-49e7-9d58-3c67a68644aa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x15c44f3247b974d274a11f2503b82bd8ea16708359dacbbeb89d86b9c23b2cfb","isrc":"BC3PG2304916","name":"Senta Renata","registered_at":"2026-06-04T16:52:10Z","spotify_id":"7mMffFzWUMaaf8yCi1RUzy","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 0x15c44f3247b974d274a11f2503b82bd8ea16708359dacbbeb89d86b9c23b2cfb. 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/7mMffFzWUMaaf8yCi1RUzy.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/7mMffFzWUMaaf8yCi1RUzy.
Joga o Cabelin de Lado X Raul Estelionatário
{"copyright_id":"0x94953f2cff3893ec634f08e6f1885a04a28677837adebb3a3853a764effda4ec","isrc":"BC3PG2400516","name":"Bem Vindo ao Baile do Casarão","registered_at":"2026-06-09T08:36:52Z","spotify_id":"6pN85gksUNbOYPUu9rM9z8","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94953f2cff3893ec634f08e6f1885a04a28677837adebb3a3853a764effda4ec. 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/6pN85gksUNbOYPUu9rM9z8.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/6pN85gksUNbOYPUu9rM9z8.
{"copyright_id":"0xf72290665d5bb7136fcd9da69c779ffb6c87c296e9fb3de03a0d6f4dd7a9ea56","isrc":"BC3PG2400944","name":"Na Onda da Orbital","registered_at":"2026-06-22T00:57:47Z","spotify_id":"2sm86CHHBKUGxV7IBfC8u4","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf72290665d5bb7136fcd9da69c779ffb6c87c296e9fb3de03a0d6f4dd7a9ea56. 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/2sm86CHHBKUGxV7IBfC8u4.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/2sm86CHHBKUGxV7IBfC8u4.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9fb5536acd38b04048eec793a71f0c0e767827fa6c2b04d82ec0e4ef6994d14. 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/6GDDPNxaypp71hLaQUpttt.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/6GDDPNxaypp71hLaQUpttt.
ELAS TÃO DEMAIS (feat. Funk Universitário)
{"copyright_id":"0x81b3ddbe33ed0461e55424daefa4149322fc560e48c5d5a9a83962d336afa57e","isrc":"BCJT12300625","name":"Se Brotar Na Minha Base","registered_at":"2026-06-11T10:29:25Z","spotify_id":"0qBjXzR96tfggZIowfRoKf","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81b3ddbe33ed0461e55424daefa4149322fc560e48c5d5a9a83962d336afa57e. 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/0qBjXzR96tfggZIowfRoKf.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/0qBjXzR96tfggZIowfRoKf.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9f4b20de18f87838907127f993e916569595fea3451fa980e2536cea9a21a37. 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/7FkTMt1OdxyzemcoA1VP8W.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/7FkTMt1OdxyzemcoA1VP8W.
{"copyright_id":"0xaa02526ac2b1dc64905c50aee9651c7b69e9af6f35d0db85ebd86e4a3252f901","isrc":"BC3PG2402228","name":"O Mundo É um Palco","registered_at":"2026-06-27T03:47:17Z","spotify_id":"2boQGGYn7qOaekn8rs2FWf","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa02526ac2b1dc64905c50aee9651c7b69e9af6f35d0db85ebd86e4a3252f901. 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/2boQGGYn7qOaekn8rs2FWf.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/2boQGGYn7qOaekn8rs2FWf.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65910941d05330bb880071159d6c7371276e8512c5e0dc4b0130b48ad5d4c333. 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/19rZfseGiFDRRHmvIh5aJv.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/19rZfseGiFDRRHmvIh5aJv.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc410c17b09075d304713515d550cfe4162523674f5db877fb8a3263015ffb6b0. 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/0E7ZcO16gxt91ccDu0c0Wu.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/0E7ZcO16gxt91ccDu0c0Wu.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9526194da7e433694c28476e9e2ccb152bab5ca30ed6a4177cc52e759feeb49f. 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/7Jm3PpRNU3n8GO6svJXgDX.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/7Jm3PpRNU3n8GO6svJXgDX.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0af7312c41f179db51a04148729304a66e4f351e27502171d90881fbf7759cb. 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/0B8nzbt8WpxPfwy7yyVey3.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/0B8nzbt8WpxPfwy7yyVey3.
{"copyright_id":"0x44df14c2ec71fa6ebffe9dd9fe4df472f5e7b4239e4bfc4d2f41878e2d7c6232","isrc":"BCM9B2401288","name":"Vem pra Floripa","registered_at":"2026-06-19T11:18:00Z","spotify_id":"1O8CtOLq9oqGcmRyYLo55a","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44df14c2ec71fa6ebffe9dd9fe4df472f5e7b4239e4bfc4d2f41878e2d7c6232. 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/1O8CtOLq9oqGcmRyYLo55a.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/1O8CtOLq9oqGcmRyYLo55a.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x295f862c0829b491ac370b7a868733c221aec7d4cbe73ab24d570b19dd3acb0c. 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/79TQ4sl5zeqE2Teij1KhoB.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/79TQ4sl5zeqE2Teij1KhoB.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd06be33d0f194895112a9d8a91dd578352353b5fca9b16ed75cfe2b978991f6b. 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/6ImAnMDuJ8yKCvZYDCiY3c.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/6ImAnMDuJ8yKCvZYDCiY3c.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x027fa5d6e2497bda58fd130a552d943e5c613a390944ee6a4223d0b9731d3b46. 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/5RqmT6i6qv4V2kWVJHf9aj.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/5RqmT6i6qv4V2kWVJHf9aj.
{"copyright_id":"0x1a28d6de4e46499e3ebafba828d5b1455bcba4e6ba2b226d672dcbcc3f449489","isrc":"BC3PG2402761","name":"Chama a Camila","registered_at":"2026-06-26T17:40:28Z","spotify_id":"2GB22RHLP2GRUuh45FpRga","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a28d6de4e46499e3ebafba828d5b1455bcba4e6ba2b226d672dcbcc3f449489. 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/2GB22RHLP2GRUuh45FpRga.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/2GB22RHLP2GRUuh45FpRga.
{"copyright_id":"0x85c9a9c0c8e04efc746f43861d91be38bb2eb84675603d2b4e048cc1b5a3a96d","isrc":"BC3PG2401327","name":"Vai Larissa","registered_at":"2026-06-06T04:27:03Z","spotify_id":"4afGNYuKRbQTpWQltv4ai8","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85c9a9c0c8e04efc746f43861d91be38bb2eb84675603d2b4e048cc1b5a3a96d. 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/4afGNYuKRbQTpWQltv4ai8.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/4afGNYuKRbQTpWQltv4ai8.
{"copyright_id":"0x4d99dd14647dec8b5bc7bd4d964f079ce349ef9bdd5497f3c45a5a73ee9ed0c7","isrc":"GBMA22418376","name":"Brisa na Mente","registered_at":"2026-06-07T13:13:12Z","spotify_id":"0mfCdWswqBY2wwfhY96LNU","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d99dd14647dec8b5bc7bd4d964f079ce349ef9bdd5497f3c45a5a73ee9ed0c7. 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/0mfCdWswqBY2wwfhY96LNU.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/0mfCdWswqBY2wwfhY96LNU.