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 0x0e18a035a92ce17d8260b39f7d950527245d84e95b6d4894878c12897c6b9e3d. 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/4bc26050-f41a-47ec-874e-0d9bb74661be.json and https://artists.proofprofile.net/proofs/artist/4bc26050-f41a-47ec-874e-0d9bb74661be.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 0x84025def306e321dac4f4b41d166f9e69fc6cdee6f1873768930e8f527e07f54. 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/27W4Reg4xwQIlQkDffGqc2.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/27W4Reg4xwQIlQkDffGqc2.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ad49631a3512dabcde3d7d710418609b2031bb9c1172984c16b50fadb69d1d6. 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/37Vr9VYnUtMZXxZ9DkR6Qv.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/37Vr9VYnUtMZXxZ9DkR6Qv.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4dd5f35f0a174ce85ba720322ac29955dfd1ebd597be41133873ad40ac65d81. 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/6jLDMzaH9pMs3JkMyS7BIj.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/6jLDMzaH9pMs3JkMyS7BIj.
{"copyright_id":"0x4adc172b599c044afb8373f8c72ff8befcf8770bd09006e8d2e3fcdcd40da111","isrc":"TCAEL1971269","name":"Take Me to Heaven","registered_at":"2026-06-10T14:13:56Z","spotify_id":"1VuRFc04Jkqfy9uH13T7jp","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4adc172b599c044afb8373f8c72ff8befcf8770bd09006e8d2e3fcdcd40da111. 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/1VuRFc04Jkqfy9uH13T7jp.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/1VuRFc04Jkqfy9uH13T7jp.
{"copyright_id":"0xe6492c753441dfcd3f49d0fe7fedb308eea2d031fbd1d79ef53329ad821622ff","isrc":"TCAEJ1991772","name":"You Don't Want Me","registered_at":"2026-06-06T16:53:58Z","spotify_id":"37lgnvIksElzeZfgCJq9MA","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6492c753441dfcd3f49d0fe7fedb308eea2d031fbd1d79ef53329ad821622ff. 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/37lgnvIksElzeZfgCJq9MA.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/37lgnvIksElzeZfgCJq9MA.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e6e8c056ac616750d0a6eb9c686b110dcf21160c4dd8e2b10a94fddbf93e2df. 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/1Ebysx5WwKmEP9oMB4P1oJ.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/1Ebysx5WwKmEP9oMB4P1oJ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8933d14b95162f8cd16aa4ec91e9cd552a9dc4829162e4172836522eced050a. 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/7d54CbPtYOmN4Eiu03fOlb.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/7d54CbPtYOmN4Eiu03fOlb.
{"copyright_id":"0xb539a78c0f8dd3fd503c36d504a403a257b206b30a346a3510c5491bd803f891","isrc":"TCACW1770493","name":"Wish You Were on It","registered_at":"2026-06-10T16:41:26Z","spotify_id":"0VGrPvqwE7sKBoxNjAevCV","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb539a78c0f8dd3fd503c36d504a403a257b206b30a346a3510c5491bd803f891. 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/0VGrPvqwE7sKBoxNjAevCV.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/0VGrPvqwE7sKBoxNjAevCV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4a38e280cffe63248ecf546d66f7134e244b9edece3a62c6b99165168a80332. 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/7AaRbv6Sl8zLT0qPy15SS5.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/7AaRbv6Sl8zLT0qPy15SS5.
{"copyright_id":"0x2b17a1a1bc8263473e17278dd9151c9ad55e9d5fd1103199fcc92180ec17edd8","isrc":"TCACW1770497","name":"Breakup Sex","registered_at":"2026-06-05T12:15:59Z","spotify_id":"1zMlCzXYSXlNAEIZVpr5CZ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b17a1a1bc8263473e17278dd9151c9ad55e9d5fd1103199fcc92180ec17edd8. 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/1zMlCzXYSXlNAEIZVpr5CZ.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/1zMlCzXYSXlNAEIZVpr5CZ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f7454fcd2f0698a2b065616d6a43427362a1a60c15d87beab1aa338702b31d0. 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/5INgYdakZaaLvaZ2WVkimB.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/5INgYdakZaaLvaZ2WVkimB.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ec1790eb9c082cfb04f01c807fe9a8135e3955630c96a4e545b85f6a4984d73. 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/1lw0VmWDW1BJZqhxpxYUD5.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/1lw0VmWDW1BJZqhxpxYUD5.
My Kinda Livin’ (HARDY feat. Hunter Phelps, Jameson Rodgers)
{"copyright_id":"0xa0358e41eeaf355be1e86415b29427071402367f125534a35c4de6f0ee07201f","isrc":"QZ22S1800070","name":"My Kinda Livin’ (HARDY feat. Hunter Phelps, Jameson Rodgers)","registered_at":"2026-06-02T01:43:24Z","spotify_id":"0aAOaGw2wPv6X3mi5Wjeqy","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0358e41eeaf355be1e86415b29427071402367f125534a35c4de6f0ee07201f. 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/0aAOaGw2wPv6X3mi5Wjeqy.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/0aAOaGw2wPv6X3mi5Wjeqy.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e25b82779b66e2eb9a82885560dac9a0462039a958aecd847c9b441359d6ec1. 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/2Cx2MNoioLzh16P0NRO6Bd.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/2Cx2MNoioLzh16P0NRO6Bd.