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 0xb56a3cd65c57d1a285ac7368e3681c621ae49cc2b4109ad057105d8317decce1. 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/16e7a8c5-f583-4f5a-a95d-135eaed3bd96.json and https://artists.proofprofile.net/proofs/artist/16e7a8c5-f583-4f5a-a95d-135eaed3bd96.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 0x10ccc6184aab079300fe6d42475eaab68afe63b683f2be2dfcaae12e7072048e. 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/5xiAfKzE3mbxYbOkUZPR11.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/5xiAfKzE3mbxYbOkUZPR11.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10ccc6184aab079300fe6d42475eaab68afe63b683f2be2dfcaae12e7072048e. 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/5WxYU8RRzy5X0kC6Fx9SpI.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/5WxYU8RRzy5X0kC6Fx9SpI.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb01073b02b8a8f57d62e49f350baa0526f9b93e71f49bdc1d7d2f5bc0d82c98b. 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/2raFBS5ysJMxhd755bvAcf.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/2raFBS5ysJMxhd755bvAcf.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5307e7395cab5e7d53e20f51a36a306eebfd06ed2e4914472f888fdaf7f03b10. 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/7wy5kv4fYAsR9qFxKKZC5E.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/7wy5kv4fYAsR9qFxKKZC5E.
{"copyright_id":"0x47d617a789622e75686390714f299845dffce1fbb7bbbcc52971105d2ae4b455","isrc":"USSD12100762","name":"Pa Mis Muchachas (feat. NATHY PELUSO)","registered_at":"2026-06-04T07:55:14Z","spotify_id":"78RtgeXImxVCNZ1MfTTEer","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47d617a789622e75686390714f299845dffce1fbb7bbbcc52971105d2ae4b455. 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/78RtgeXImxVCNZ1MfTTEer.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/78RtgeXImxVCNZ1MfTTEer.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13b1b02d411810025c959ee04accffcb2b17051db68ed4f9dd012ced722f12c9. 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/3lkiTKxSDxOqZkQnf9FUEo.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/3lkiTKxSDxOqZkQnf9FUEo.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2e73f3646b09f26e0bc09b38f30bea285eafcc4d97cf5999603322dd3fe982c. 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/31YHWv22Lyv9iKBepk3guM.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/31YHWv22Lyv9iKBepk3guM.
{"copyright_id":"0x47d617a789622e75686390714f299845dffce1fbb7bbbcc52971105d2ae4b455","isrc":"USSD12100762","name":"Pa Mis Muchachas (feat. NATHY PELUSO)","registered_at":"2026-06-04T07:55:14Z","spotify_id":"1kGhjFgl6A68ZAYvtw2UDK","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47d617a789622e75686390714f299845dffce1fbb7bbbcc52971105d2ae4b455. 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/1kGhjFgl6A68ZAYvtw2UDK.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/1kGhjFgl6A68ZAYvtw2UDK.
Nathy Peluso: Bzrp Music Sessions, Vol. 36
{"copyright_id":"0xf1f8b4dda764505eb06aa3e745edf1b288df5a70e12c740944a2b6beec6d4784","isrc":"UYB282001011","name":"Nathy Peluso: Bzrp Music Sessions, Vol. 36","registered_at":"2026-06-01T09:17:51Z","spotify_id":"78SeXVRJ7KCqVmOwTiFjnI","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1f8b4dda764505eb06aa3e745edf1b288df5a70e12c740944a2b6beec6d4784. 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/78SeXVRJ7KCqVmOwTiFjnI.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/78SeXVRJ7KCqVmOwTiFjnI.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5307e7395cab5e7d53e20f51a36a306eebfd06ed2e4914472f888fdaf7f03b10. 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/60Vcq5IbzJGhHuwtqVovHm.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/60Vcq5IbzJGhHuwtqVovHm.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb01073b02b8a8f57d62e49f350baa0526f9b93e71f49bdc1d7d2f5bc0d82c98b. 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/4AINuhTujSI5LmfO7sJRA8.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/4AINuhTujSI5LmfO7sJRA8.
{"copyright_id":"0x47d617a789622e75686390714f299845dffce1fbb7bbbcc52971105d2ae4b455","isrc":"USSD12100762","name":"Pa Mis Muchachas (feat. NATHY PELUSO)","registered_at":"2026-06-04T07:55:14Z","spotify_id":"3xG7FX9eRJg46WMNqbmC0L","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47d617a789622e75686390714f299845dffce1fbb7bbbcc52971105d2ae4b455. 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/3xG7FX9eRJg46WMNqbmC0L.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/3xG7FX9eRJg46WMNqbmC0L.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10ccc6184aab079300fe6d42475eaab68afe63b683f2be2dfcaae12e7072048e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2v9NLnWSXfxe86LXc72LoJ.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/2v9NLnWSXfxe86LXc72LoJ.
La Verónica - EADDA9223 (feat. NATHY PELUSO)
{"copyright_id":"0xb0694b5dbbe827508f31bd7aebdeac4e215d3ff5d884824a5b38145240fcad64","isrc":"ARF102300047","name":"La Verónica - EADDA9223 (feat. NATHY PELUSO)","registered_at":"2026-06-06T16:44:20Z","spotify_id":"3jlqMT67KiH9NxOOw5rUGt","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0694b5dbbe827508f31bd7aebdeac4e215d3ff5d884824a5b38145240fcad64. 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/3jlqMT67KiH9NxOOw5rUGt.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/3jlqMT67KiH9NxOOw5rUGt.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ed7d86a9f6c0d118aa6e8313582797669a986b55c523cd76f64823b2f5278cc. 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/5VrKDJsD0VhIfjZxCEUXOI.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/5VrKDJsD0VhIfjZxCEUXOI.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3be184ab012c2fab68667fab8fc118703b7f672c94be7de9a09594022f48643b. 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/3IIwWeUz1DEKHfY01uej6N.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/3IIwWeUz1DEKHfY01uej6N.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd25b3a623a16013a92bd02d9864d076d170d19eeaddf1fd71af71f41b0d5a8d0. 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/0uRntQYQmiuUsbU53QB7i4.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/0uRntQYQmiuUsbU53QB7i4.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4580a8c58b60ecb42b3822d85a4c1b3b042fb1b1c45fb51625e09ccb8b9e64a. 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/47Y7zbY54UmViUUDUrq7Sk.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/47Y7zbY54UmViUUDUrq7Sk.
{"copyright_id":"0xf8a67d06f5a22d84ae81be08cded21b2b83ea3109e09e797b82895633edede96","isrc":"ES5022400902","name":"ESCALERAS DE METAL","registered_at":"2026-06-04T10:35:56Z","spotify_id":"4pyGQ9yY5AELf0x7PbhpLO","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8a67d06f5a22d84ae81be08cded21b2b83ea3109e09e797b82895633edede96. 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/4pyGQ9yY5AELf0x7PbhpLO.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/4pyGQ9yY5AELf0x7PbhpLO.