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 0xce0f36a6a7d1bc9a863b5e814db4f74c8d8d3199d7fe152bd2d02958a58e8ba5. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/19977e42-fff4-46fb-a320-081ce0ded991.json and https://artists.proofprofile.net/proofs/artist/19977e42-fff4-46fb-a320-081ce0ded991.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xfbbc01d356a39318adfbba49dba0a43c8fa7577e6b7f8098fe0fc3138a63a7cd","isrc":"QZFZ32252327","name":"MENTOS EN MI LENGUA","registered_at":"2026-06-29T06:47:47Z","spotify_id":"5na0JSQJvsdr3Sz99hYFsQ","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 0xfbbc01d356a39318adfbba49dba0a43c8fa7577e6b7f8098fe0fc3138a63a7cd. 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/5na0JSQJvsdr3Sz99hYFsQ.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/5na0JSQJvsdr3Sz99hYFsQ.
PRESENTACION ESCOLAR DE AGUSFORTNITE2008
{"copyright_id":"0x450eac7594fcce466b30c5ae788ef4d3783c2d36892ba7b48360492ad86c63d0","isrc":"QZHN72370306","name":"MALVINAS ARGENTINAS","registered_at":"2026-06-29T06:49:17Z","spotify_id":"4mfCNAX6PV3owFtpHC6ed6","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x450eac7594fcce466b30c5ae788ef4d3783c2d36892ba7b48360492ad86c63d0. 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/4mfCNAX6PV3owFtpHC6ed6.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/4mfCNAX6PV3owFtpHC6ed6.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x947038aa7f1cf7292821b8e9b30236882a23ccb4b6c761e5d60f7cc96d1cfe59. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6V5yQ0BnLau7f3XJk99SfF.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/6V5yQ0BnLau7f3XJk99SfF.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b00fdade3c5e265b9d0dcba4c32875f47e577cddb0e99a0908279d31a610de6. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0it05Cu3FOuTzhyo6ApVo6.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/0it05Cu3FOuTzhyo6ApVo6.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x687f65dccdc411cdba2384d2fb188334fff0872864b6fa8c4dd82d7316650d2b. 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/2ZqzcMvOgvarxZAIeGkwxi.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/2ZqzcMvOgvarxZAIeGkwxi.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ebc6f6411d4fe49000d0c6314b4e12ac27a108a578da45b41023697c3ea652a. 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/27u7v9AUn0fKcpkelQZybN.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/27u7v9AUn0fKcpkelQZybN.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3931b960cdf3a75962ded886d7277af6de82a7b3ee3794a05e8920bdce2dfa4f. 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/3VkgW64CPN1QE3UCicAnGy.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/3VkgW64CPN1QE3UCicAnGy.
{"copyright_id":"0x156dcbaac4a385c8adad2f31e11fb417f59d962fab46c28b80dafc13d76cfa0b","isrc":"UYB282411503","name":"COF COF","registered_at":"2026-06-05T07:15:26Z","spotify_id":"7hIHw2ZQvO03akODomHnbx","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x156dcbaac4a385c8adad2f31e11fb417f59d962fab46c28b80dafc13d76cfa0b. 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/7hIHw2ZQvO03akODomHnbx.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/7hIHw2ZQvO03akODomHnbx.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x947038aa7f1cf7292821b8e9b30236882a23ccb4b6c761e5d60f7cc96d1cfe59. 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/7I89PYtWOrM6W98K5V3Tx4.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/7I89PYtWOrM6W98K5V3Tx4.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x396e0590f2a99dba1999c7c227625d751c9212e7a4c25fdee9a25fdc4de9f351. 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/3SoGfsq6NjrO81nPcJiwck.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/3SoGfsq6NjrO81nPcJiwck.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d2505040ecc276d563398698ccab262452b2aecdfb3b3f759fd1ab0f7b2e94b. 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/3A2QNe4KTXUz52kpHX9f8F.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/3A2QNe4KTXUz52kpHX9f8F.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91536cea21b34c832f6ea04236412524b49e46dfdf320f2c536bd4f52f6881dd. 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/6fHTZx3WOVgq76Vpi1VDR9.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/6fHTZx3WOVgq76Vpi1VDR9.
{"copyright_id":"0xcc9326d21ff0610a418bc39cc28db63a58429c1c80d3fffec20eaebfbac34a6b","isrc":"UYB282411507","name":"ESTO ES ENCHUFE LA CHUPA EL HIP HOP","registered_at":"2026-06-06T10:50:15Z","spotify_id":"43f74xpi5Pgfc0EQaAJ5CT","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc9326d21ff0610a418bc39cc28db63a58429c1c80d3fffec20eaebfbac34a6b. 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/43f74xpi5Pgfc0EQaAJ5CT.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/43f74xpi5Pgfc0EQaAJ5CT.
{"copyright_id":"0x898bca30480bc7c8b232a5ac82b6627bcac660bf26ef7a84bd908a86fae61c8e","isrc":"UYB282411508","name":"ESTOY RE PANCHO","registered_at":"2026-06-07T18:01:35Z","spotify_id":"2HoALulwvylZVpbQvjiOIx","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x898bca30480bc7c8b232a5ac82b6627bcac660bf26ef7a84bd908a86fae61c8e. 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/2HoALulwvylZVpbQvjiOIx.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/2HoALulwvylZVpbQvjiOIx.
{"copyright_id":"0x0cb1a6f0059e8da5c56bd6f9524e0a4381b3f07755afa27868f19df9ba6f7814","isrc":"UYB282411509","name":"SHH CERRA EL ORTO VIEJO ROCKERO","registered_at":"2026-06-07T13:41:45Z","spotify_id":"5OAIIRo3ZGtHhg9HYPAluq","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cb1a6f0059e8da5c56bd6f9524e0a4381b3f07755afa27868f19df9ba6f7814. 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/5OAIIRo3ZGtHhg9HYPAluq.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/5OAIIRo3ZGtHhg9HYPAluq.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b00fdade3c5e265b9d0dcba4c32875f47e577cddb0e99a0908279d31a610de6. 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/3k8YIbcAHaJtoub5hMbdw9.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/3k8YIbcAHaJtoub5hMbdw9.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa895204991e1d73066eb02aa45be76742981d4c802b2046e11f3decdb73530ee. 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/1Jls2Y3NpHuHk1yyqEc8iq.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/1Jls2Y3NpHuHk1yyqEc8iq.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b6bcbfe5749514d3a273858560f680dc04a4ef938f2bce23c43777265cab173. 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/42ZArnutVF99D6ZaPEwcK1.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/42ZArnutVF99D6ZaPEwcK1.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa57ef50cadd89dc381c3362e5c2b01a1127eb34bbc286e526ac6200b15e5ff8c. 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/0y3KjY1UDdyL7FhnbLVUYQ.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/0y3KjY1UDdyL7FhnbLVUYQ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16ee804a3995ea8e4ef40032d3023eba3c146ddc83817de27c130c363395b47f. 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/4yEKEHGaKXnz5eoTLCtgPt.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/4yEKEHGaKXnz5eoTLCtgPt.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3346ecc4abd928c81d56fcec2b5fa4381689a7f910965f61ec32ff3b7f7881f8. 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/5Tax8y3dztCC49aQ40JzP1.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/5Tax8y3dztCC49aQ40JzP1.