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 0xd0e2e3f4b8d231878660f47eca1360a6f99c3b23817e7aa732fbc0d551dd89ef. 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/4b23a65b-5db3-4e5c-82e6-b15b1b4d6150.json and https://artists.proofprofile.net/proofs/artist/4b23a65b-5db3-4e5c-82e6-b15b1b4d6150.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 0xf2fa80d151093e90a7d7d898a917a33c6b88a3e81b1271a51df799bbf9bad737. 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/53NBidTbrfPlhioatGKOwx.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/53NBidTbrfPlhioatGKOwx.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bed48f0339c084064f3e5f75674756e155bb118e5de26929225916417f2abf7. 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/4ARvlvumbli1dTYmJJXgFN.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/4ARvlvumbli1dTYmJJXgFN.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09f6298631a30f494efed89c521d822d2491ef69d4dae8db190ae35e385be954. 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/0zx0wmLL45hA6Rwjc1fHMA.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/0zx0wmLL45hA6Rwjc1fHMA.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fa27e59d124c374c186012749e5f25b94559fa9e570135d6ac9051224ef7404. 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/5fAjsWZwoan2wR6cTlyeWA.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/5fAjsWZwoan2wR6cTlyeWA.
{"copyright_id":"0x99f2e5fa6e9f1aeac49c8ccbfb8c843cb2b43c97091164813e15de4e9ecdae88","isrc":"BRTRB2085060","name":"Picumã y Próteses","registered_at":"2026-06-08T13:38:56Z","spotify_id":"4YPSnBQZCw46JD2Iqcs4Xf","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99f2e5fa6e9f1aeac49c8ccbfb8c843cb2b43c97091164813e15de4e9ecdae88. 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/4YPSnBQZCw46JD2Iqcs4Xf.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/4YPSnBQZCw46JD2Iqcs4Xf.
{"copyright_id":"0x5b6b608daf83ec360fce711fd5ffd1363b36cf3ddb8d5d95f893438f001e8084","isrc":"BRTRB2085061","name":"Femme Queen","registered_at":"2026-06-07T14:42:45Z","spotify_id":"3jnEqLSA2O1bS8NgOygBTR","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b6b608daf83ec360fce711fd5ffd1363b36cf3ddb8d5d95f893438f001e8084. 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/3jnEqLSA2O1bS8NgOygBTR.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/3jnEqLSA2O1bS8NgOygBTR.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8715164206ea08743aa3e4463e13be71428453b9c1f3c60a5a660de7ea1bf120. 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/7DD03hg6Fa9asEZPgAMV19.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/7DD03hg6Fa9asEZPgAMV19.
{"copyright_id":"0x117ce2b254f62edd448c71249f2ec4878a21e2995053377505bdf4cc1a9b2e83","isrc":"BRTRB2085063","name":"Travequeiro - A Travestis Remix","registered_at":"2026-06-09T09:36:58Z","spotify_id":"48hO38lWKnNJE0Jq0a3P7q","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x117ce2b254f62edd448c71249f2ec4878a21e2995053377505bdf4cc1a9b2e83. 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/48hO38lWKnNJE0Jq0a3P7q.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/48hO38lWKnNJE0Jq0a3P7q.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x033c44dbb45b00ebd6f6d6a7a89c9a2abc7a1b25379c74db1950eada97dee7ab. 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/1HdAQ4wpXjAYeQI5DIrdr7.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/1HdAQ4wpXjAYeQI5DIrdr7.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba5d6382b39b167431a067edfb7d08308c5e863048cfe3fa0a6ae78d0c3ecc71. 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/75N6NWu7OTYZQnA8Jbnfsa.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/75N6NWu7OTYZQnA8Jbnfsa.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44dba6a2b281a3a86af29ba4626249aa937c0a8988944046750513f582de0759. 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/7m11QHa9VLJ4aY019j1yAc.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/7m11QHa9VLJ4aY019j1yAc.
{"copyright_id":"0x41fbe0a15998f37c2159bcd80f10421a6078e9b7acc606bf0349a7e550f8d6c3","isrc":"BRTRB2300839","name":"Medley do Submundo","registered_at":"2026-06-04T10:59:16Z","spotify_id":"0ZatDYDvbfr6Jz0DPPMin3","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41fbe0a15998f37c2159bcd80f10421a6078e9b7acc606bf0349a7e550f8d6c3. 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/0ZatDYDvbfr6Jz0DPPMin3.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/0ZatDYDvbfr6Jz0DPPMin3.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86e30ea502fc22efe625686e7af1d442796a3967f7946771acd98c5d150cf61a. 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/7q9zd2m4jFAPCl0ALBuWH1.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/7q9zd2m4jFAPCl0ALBuWH1.
{"copyright_id":"0x5f974a953cb9981c79b0d02ecc9439a44975fa2cff17557b76612a05bcfa7274","isrc":"BRTRB2088310","name":"Vingança da Malo'Key","registered_at":"2026-06-07T09:57:57Z","spotify_id":"1uDgAQeG87OoAm5xuWJMlH","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f974a953cb9981c79b0d02ecc9439a44975fa2cff17557b76612a05bcfa7274. 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/1uDgAQeG87OoAm5xuWJMlH.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/1uDgAQeG87OoAm5xuWJMlH.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e8dddcb1e0d2af3ca6c22176131eed4e4ae3e4a331e0f8f328e6af00a24bb46. 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/0xxx5yQ3GURVauzb7igBET.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/0xxx5yQ3GURVauzb7igBET.
{"copyright_id":"0xfc32306358f2f6a3306bdfb61bc5f1cdba2a214438d6b994a51248ba79786497","isrc":"BCHMR2400001","name":"VOGUE CHANT INTRO","registered_at":"2026-06-08T03:30:15Z","spotify_id":"0KThSDd3POcBGo1v7PYWKH","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc32306358f2f6a3306bdfb61bc5f1cdba2a214438d6b994a51248ba79786497. 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/0KThSDd3POcBGo1v7PYWKH.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/0KThSDd3POcBGo1v7PYWKH.
{"copyright_id":"0xebf85ef2dcfcdcfe397c2a848816181336069ef3e85ccbe6524977f07612dbdc","isrc":"BCHMR2400002","name":"METE MARCHA S4TAN REMIX","registered_at":"2026-06-04T16:12:09Z","spotify_id":"3ETPDvoeCAopIpQeqbY08s","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebf85ef2dcfcdcfe397c2a848816181336069ef3e85ccbe6524977f07612dbdc. 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/3ETPDvoeCAopIpQeqbY08s.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/3ETPDvoeCAopIpQeqbY08s.
{"copyright_id":"0x59b46bfc0ebed2358ef742dcf32551177b1f8731a3ab4a2c39f5db266682d162","isrc":"BRTRB2400037","name":"SHAMBARALAI CYBERKILLS REMIX","registered_at":"2026-06-06T02:21:03Z","spotify_id":"2dBdaJBMYI5tXHLskvsEZq","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59b46bfc0ebed2358ef742dcf32551177b1f8731a3ab4a2c39f5db266682d162. 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/2dBdaJBMYI5tXHLskvsEZq.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/2dBdaJBMYI5tXHLskvsEZq.
{"copyright_id":"0xfb99146d2df5efe4cc18d39cdb06917d0b2d8ec76cc57560d279030bfdf7a883","isrc":"BCM112300083","name":"Derretida - Brunoso Remix","registered_at":"2026-06-07T18:58:07Z","spotify_id":"4wCkxDA6ruE8gh2Hf4Y0fP","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb99146d2df5efe4cc18d39cdb06917d0b2d8ec76cc57560d279030bfdf7a883. 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/4wCkxDA6ruE8gh2Hf4Y0fP.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/4wCkxDA6ruE8gh2Hf4Y0fP.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x145b6fb9beb3e081af9073d8915e2cd5b3980964582620c47b800f90984b514d. 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/0dDMfffpwiwtDi41DTa9zT.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/0dDMfffpwiwtDi41DTa9zT.