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 0x9dd7fed3dd2ae9123e00adc82cb6c96ac9eba894cc00bdce7103a2cdc74b327b. 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/ed13e8a0-5a85-408c-9124-40f25215bb15.json and https://artists.proofprofile.net/proofs/artist/ed13e8a0-5a85-408c-9124-40f25215bb15.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 0x6fe7c8a4c7159875efbd76da9d855f9c899ababe0d48153df41911aa3d5f1dbb. 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/7JsVTGTXm1NRHh9k229x6Z.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/7JsVTGTXm1NRHh9k229x6Z.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8105090833281868c059e6eaa740e98bf8f5655b959f46d5e775a2c6eeb3744. 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/4LegpI77fDjbBUz7TBvWvN.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/4LegpI77fDjbBUz7TBvWvN.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf822651b82c8d4788694277acae2f44cec219183d6911c8fb2bc513e4313e569. 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/61N2h4EY1PtoNnJjw6GnEV.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/61N2h4EY1PtoNnJjw6GnEV.
{"copyright_id":"0x268d5f02abab860119dd28a137832cd3ff19e04c4cb79c63ce8f0021a61d0a28","isrc":"BXG6R2400476","name":"Acalma o Coração","registered_at":"2026-06-19T08:07:59Z","spotify_id":"5pL0zZXNgkkXomMaxPVMHZ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x268d5f02abab860119dd28a137832cd3ff19e04c4cb79c63ce8f0021a61d0a28. 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/5pL0zZXNgkkXomMaxPVMHZ.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/5pL0zZXNgkkXomMaxPVMHZ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd36861874ecf27d6973d50e5ed1ac53d31077baebd219cc6744d8ceea9e9707f. 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/3YHuF3NKQnzTSa4uJsZkbM.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/3YHuF3NKQnzTSa4uJsZkbM.
{"copyright_id":"0x1a4d281fa4b97ddb6ad5654672b5f7a35e6c0d3a44f11cd45614d7e55582ec02","isrc":"BXG6R2300748","name":"Set Kapela - Elite de Malokeiro 2","registered_at":"2026-06-07T00:25:40Z","spotify_id":"0l7jtm1NI9WOAaepjaNsjt","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a4d281fa4b97ddb6ad5654672b5f7a35e6c0d3a44f11cd45614d7e55582ec02. 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/0l7jtm1NI9WOAaepjaNsjt.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/0l7jtm1NI9WOAaepjaNsjt.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8419ad980b1b98557d42baf0dd95daae5146789c64bc735265d2fc83d85d5c0a. 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/7KM3s9TZZ3yJDSP9rIkcbc.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/7KM3s9TZZ3yJDSP9rIkcbc.
{"copyright_id":"0xdcc81507f76e7f1a2194f6b4b03c9c83d63e556c350fc5291ef8172a1c10874f","isrc":"BRWMB2301120","name":"Meu Nome Não é Igor","registered_at":"2026-06-04T09:20:26Z","spotify_id":"7kNeXhxZkiTllXjinfuXh2","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcc81507f76e7f1a2194f6b4b03c9c83d63e556c350fc5291ef8172a1c10874f. 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/7kNeXhxZkiTllXjinfuXh2.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/7kNeXhxZkiTllXjinfuXh2.
{"copyright_id":"0x83bea1c17d8ad4c008db924f017cb523b8d6eca76db3eaf5eee28828335a92b2","isrc":"BXG6R2400095","name":"SET BOLOLÔ HAHA","registered_at":"2026-06-08T03:16:46Z","spotify_id":"6hcoxuWPGHdXKaFI0LTQ5j","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83bea1c17d8ad4c008db924f017cb523b8d6eca76db3eaf5eee28828335a92b2. 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/6hcoxuWPGHdXKaFI0LTQ5j.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/6hcoxuWPGHdXKaFI0LTQ5j.
{"copyright_id":"0xdcc81507f76e7f1a2194f6b4b03c9c83d63e556c350fc5291ef8172a1c10874f","isrc":"BRWMB2301120","name":"Meu Nome Não é Igor","registered_at":"2026-06-04T09:20:26Z","spotify_id":"5UJm8uLwHumv20szDWUaDn","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcc81507f76e7f1a2194f6b4b03c9c83d63e556c350fc5291ef8172a1c10874f. 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/5UJm8uLwHumv20szDWUaDn.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/5UJm8uLwHumv20szDWUaDn.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x599bcd5c6b60f679508c059cbca6bc690bf730bce968a07e10e5a70116b4e186. 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/10gEmiesnJg99IAAmRFvj1.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/10gEmiesnJg99IAAmRFvj1.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ea8b8f4496a533aa45d457e76554970386152575c006a13a68fb7b0209732df. 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/3kv8EHM2GCfPUQh2gxj6uP.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/3kv8EHM2GCfPUQh2gxj6uP.
{"copyright_id":"0x1a6a0c58be0bd3ab4d249ce56f03108e19d9d7de135cae500ebfa6e1d85e4482","isrc":"BXG6R2101096","name":"Polo da Brooks","registered_at":"2026-06-22T00:26:01Z","spotify_id":"5izvZBPoTnwImVE2WBGMZV","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a6a0c58be0bd3ab4d249ce56f03108e19d9d7de135cae500ebfa6e1d85e4482. 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/5izvZBPoTnwImVE2WBGMZV.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/5izvZBPoTnwImVE2WBGMZV.
Revoada do tubarão 2 (feat. MC Davi, Mc PP da VS, Mc Pedrinho, Mc Dricka, Mc Lbx, Mc Kevin, Salvador Da Rima, Ferrugem, MC Kevinho & Gaab)
{"copyright_id":"0xd6619b6e69627fba13fbf2904222f0bb672a5e42ea2a5ce9f783519f5ed09c2e","isrc":"BXG6R2400326","name":"Fim De Semana","registered_at":"2026-06-08T03:17:00Z","spotify_id":"6z6zyOKzi6jy4BQYMNdwdk","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6619b6e69627fba13fbf2904222f0bb672a5e42ea2a5ce9f783519f5ed09c2e. 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/6z6zyOKzi6jy4BQYMNdwdk.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/6z6zyOKzi6jy4BQYMNdwdk.