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 0xadcbe7af2691fb9e59d35b5475321454db1f76480b71b43cb62b0ea171b92ed3. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1e305df9-964b-443c-ba41-bdc57418d89a.json and https://artists.proofprofile.net/proofs/artist/1e305df9-964b-443c-ba41-bdc57418d89a.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 0x7ed8db4f58e89cbf1c04250eab03d8dd80387f9e6f17032ed2b33771a7258696. 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/2XYJSOZUsPHwQ5GxMN4t1K.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/2XYJSOZUsPHwQ5GxMN4t1K.
I Do - Bruno Martini & Guz Zanotto Remix
I Do (Bruno Martini & Guz Zanotto Remix)
{"copyright_id":"0x2d7425dae1f88c973ac026b7f788186fac4e5cf713119039e78a554aea9e0cd5","isrc":"BRUM71903466","name":"I Do - Bruno Martini & Guz Zanotto Remix","registered_at":"2026-06-27T09:07:26Z","spotify_id":"43Fgy6Z8RDy1TjaFr0uLwU","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d7425dae1f88c973ac026b7f788186fac4e5cf713119039e78a554aea9e0cd5. 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/43Fgy6Z8RDy1TjaFr0uLwU.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/43Fgy6Z8RDy1TjaFr0uLwU.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0498772c91b19be7a31d4409f041c83455933a9af643a9add079a828a5786c33. 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/6kr1XcJB27Qwmu8V0yyRs0.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/6kr1XcJB27Qwmu8V0yyRs0.
Cante por Nós - Guz Zanotto, PRINSH, Geminix Remix
{"copyright_id":"0x702326121b3f4b879ce0a52721172dbe133168e47097db641c6a3d60ef3be758","isrc":"BXHBP1800168","name":"Cante por Nós - Guz Zanotto, PRINSH, Geminix Remix","registered_at":"2026-06-06T16:09:10Z","spotify_id":"2WJ7130ibtisOfzJ0fu1dy","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x702326121b3f4b879ce0a52721172dbe133168e47097db641c6a3d60ef3be758. 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/2WJ7130ibtisOfzJ0fu1dy.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/2WJ7130ibtisOfzJ0fu1dy.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2feb728fef9766281b61941a276e11aee5ad1ccfa705a1422e30f3a53cf76e3f. 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/6UBtp8y62M4ywN7BCJ8j5t.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/6UBtp8y62M4ywN7BCJ8j5t.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c99c362cca12a13192d74e81f4bb4088e18eb1bef15143ab0c49869b0fef063. 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/1P7Tm634HZADnYVSZH56b3.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/1P7Tm634HZADnYVSZH56b3.
{"copyright_id":"0x18c6140ef731a965bf63ff065d61199477cbabfc85d0baf42fbea00c5180c6db","isrc":"BRUM72200334","name":"I'll Be There","registered_at":"2026-06-27T05:30:25Z","spotify_id":"0LtWFROsQbzdHq750ii2Bd","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18c6140ef731a965bf63ff065d61199477cbabfc85d0baf42fbea00c5180c6db. 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/0LtWFROsQbzdHq750ii2Bd.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/0LtWFROsQbzdHq750ii2Bd.
Waiting For You (Leo Z & Guz Zanotto Remix)
Imprevisível - Overdriver Duo e Guz Zanotto Remix
Imprevisível (Overdriver Duo e Guz Zanotto Remix)
{"copyright_id":"0x73512376b379546a0d705d57b4668458eda1fb28be42c7e2eae57a7409f45790","isrc":"BRSME2101715","name":"Imprevisível - Overdriver Duo e Guz Zanotto Remix","registered_at":"2026-06-05T13:13:21Z","spotify_id":"3z51kAmAca2StfedNebGNe","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73512376b379546a0d705d57b4668458eda1fb28be42c7e2eae57a7409f45790. 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/3z51kAmAca2StfedNebGNe.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/3z51kAmAca2StfedNebGNe.
{"copyright_id":"0xab6af882949698deae31f789c6b8f8f2ea651235cff33d6606a00fd5489dcba2","isrc":"BRLC32100062","name":"Deixa Ela Voar - Remix","registered_at":"2026-06-06T11:42:30Z","spotify_id":"2HaHtnwjJT4JPjff5bR4oZ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab6af882949698deae31f789c6b8f8f2ea651235cff33d6606a00fd5489dcba2. 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/2HaHtnwjJT4JPjff5bR4oZ.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/2HaHtnwjJT4JPjff5bR4oZ.
{"copyright_id":"0xab6af882949698deae31f789c6b8f8f2ea651235cff33d6606a00fd5489dcba2","isrc":"BRLC32100062","name":"Deixa Ela Voar - Remix","registered_at":"2026-06-06T11:42:30Z","spotify_id":"4HN4oN8Vf2TWK1ytJhyg1T","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab6af882949698deae31f789c6b8f8f2ea651235cff33d6606a00fd5489dcba2. 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/4HN4oN8Vf2TWK1ytJhyg1T.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/4HN4oN8Vf2TWK1ytJhyg1T.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63a39dc029b02a4ccf1338edcd915926cf5440194329b853d413663c4a9cddd9. 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/51cVwInykJqFrXp73XVCgO.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/51cVwInykJqFrXp73XVCgO.
{"copyright_id":"0x877bd92d6a2e5ae146c5bf086121a2ac8d481b918fcb8aeb3b6a2a7bb13b7b9e","isrc":"USL4Q2446080","name":"Não Fosse Tão Tarde","registered_at":"2026-06-08T04:32:53Z","spotify_id":"16EjOYbUHApCFKGjCg34Lm","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x877bd92d6a2e5ae146c5bf086121a2ac8d481b918fcb8aeb3b6a2a7bb13b7b9e. 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/16EjOYbUHApCFKGjCg34Lm.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/16EjOYbUHApCFKGjCg34Lm.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87b2d2110eff154d8a157bbe131f10d6119881d2ec78be808d6e41781ada9d37. 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/1WCOylLtSPvf4r8gQdEI5H.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/1WCOylLtSPvf4r8gQdEI5H.
Sentença - Guz Zanotto & André Sarate Remix
{"copyright_id":"0x2701c9c5ac01ca2f4007b31f4cd14fbbdb8e8e6d4729f08f28bc6dfffdd9ab28","isrc":"BRU5R2200036","name":"INTENSAMENTE - Remix","registered_at":"2026-06-25T17:39:52Z","spotify_id":"33AvdDuQE0JfhX67AHhKcK","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2701c9c5ac01ca2f4007b31f4cd14fbbdb8e8e6d4729f08f28bc6dfffdd9ab28. 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/33AvdDuQE0JfhX67AHhKcK.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/33AvdDuQE0JfhX67AHhKcK.