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 0x8d768952bcba8d38e4fedf904937d352cff866a19a6df7db66699729dd4ad968. 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/fb904404-1191-424b-a523-6020df8cbf19.json and https://artists.proofprofile.net/proofs/artist/fb904404-1191-424b-a523-6020df8cbf19.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x9e2704b0b6d0e72642fea8afc1e06ac3dd9b02f945165f7ab614e126a01f868e","isrc":"SEYOK1616180","name":"Yoga Morning","registered_at":"2026-06-24T17:49:38Z","spotify_id":"0wfcQdWTvdJtDFCMZDbuT5","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 0x9e2704b0b6d0e72642fea8afc1e06ac3dd9b02f945165f7ab614e126a01f868e. 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/0wfcQdWTvdJtDFCMZDbuT5.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/0wfcQdWTvdJtDFCMZDbuT5.
{"copyright_id":"0xd340ebba0e2061754d78eb4e15a44be0caf87cec09a18b94bf96088440def941","isrc":"SEYOK1616183","name":"Stressed Out","registered_at":"2026-06-24T17:49:52Z","spotify_id":"6Ftw3arWuhR0v9Vl6ql5Cc","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd340ebba0e2061754d78eb4e15a44be0caf87cec09a18b94bf96088440def941. 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/6Ftw3arWuhR0v9Vl6ql5Cc.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/6Ftw3arWuhR0v9Vl6ql5Cc.
{"copyright_id":"0x099f4960b553b654209a7709e56e4cff358d5c3f52def3c0b0b5b9da9bc50f5b","isrc":"SEYOK1616184","name":"Energy Is Everywhere","registered_at":"2026-06-24T17:51:06Z","spotify_id":"6bezaMPV6GfytPmiC4tqJX","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x099f4960b553b654209a7709e56e4cff358d5c3f52def3c0b0b5b9da9bc50f5b. 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/6bezaMPV6GfytPmiC4tqJX.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/6bezaMPV6GfytPmiC4tqJX.
{"copyright_id":"0x6954f023697f8cbfa362e33cfb7df820fb841b9be71b77b38e09cc098fc9e153","isrc":"SEYOK1616185","name":"Oasis Garden","registered_at":"2026-06-06T05:27:24Z","spotify_id":"6p9pmamx1u9yiXueVSEEPl","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6954f023697f8cbfa362e33cfb7df820fb841b9be71b77b38e09cc098fc9e153. 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/6p9pmamx1u9yiXueVSEEPl.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/6p9pmamx1u9yiXueVSEEPl.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50c12b3f4a63293810693e7e48756246ee394d9c3c99f54385eb77c8f41a524d. 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/2ksKNHLkGezuEMjI2MOZQz.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/2ksKNHLkGezuEMjI2MOZQz.
{"copyright_id":"0x17bd7c6b451b3d89a57b854e3e44d62fdd3fec0bdf5d05aed43b33d8dcba2b04","isrc":"SEYOK1616188","name":"Drifting Ocean","registered_at":"2026-06-27T09:54:27Z","spotify_id":"3Vwr1YMKKhQ5pqPDgjI1a0","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17bd7c6b451b3d89a57b854e3e44d62fdd3fec0bdf5d05aed43b33d8dcba2b04. 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/3Vwr1YMKKhQ5pqPDgjI1a0.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/3Vwr1YMKKhQ5pqPDgjI1a0.
{"copyright_id":"0xefdb8bb7b7a69ef538ee5b2c661a1592c0752f4987099a0c2082df2c165c7f4c","isrc":"SEYOK1616189","name":"A Million Years from Now","registered_at":"2026-06-07T02:04:53Z","spotify_id":"3Yft6Dvr7uZyQ3VeD9HOsb","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefdb8bb7b7a69ef538ee5b2c661a1592c0752f4987099a0c2082df2c165c7f4c. 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/3Yft6Dvr7uZyQ3VeD9HOsb.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/3Yft6Dvr7uZyQ3VeD9HOsb.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8960ae7d932a30ed359a350471f1e0de9865f08cd353063702d60d507b4aebef. 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/1IqTlVHek0JIzTj55NkzGa.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/1IqTlVHek0JIzTj55NkzGa.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x927c222795305cac39ee66c60bd5fd665a5b246b143e4f9686b7cc4725674662. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5dxiCpLhcLLv2jiVSLUWPV.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/5dxiCpLhcLLv2jiVSLUWPV.
{"copyright_id":"0x8784b16c9f4d29afbe915723144d30284adeb16daedc9fec87472b2895f7377b","isrc":"SEYOK1616192","name":"Inside Your Soul","registered_at":"2026-06-27T09:53:14Z","spotify_id":"7G1zjkQLmWFENPLRZmYKUT","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8784b16c9f4d29afbe915723144d30284adeb16daedc9fec87472b2895f7377b. 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/7G1zjkQLmWFENPLRZmYKUT.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/7G1zjkQLmWFENPLRZmYKUT.
{"copyright_id":"0x8b5b47b59c873092385ffe705b112942df1ed7daae65858c536dee2c17104bd6","isrc":"SEYOK1616194","name":"Thoughs Are Powerful","registered_at":"2026-06-08T21:50:57Z","spotify_id":"3uR41PCGvEGtPeVqlbNZVI","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b5b47b59c873092385ffe705b112942df1ed7daae65858c536dee2c17104bd6. 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/3uR41PCGvEGtPeVqlbNZVI.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/3uR41PCGvEGtPeVqlbNZVI.
{"copyright_id":"0x1977bef6cf1cbe0c4e3be0011244837fd389d62fb4a8362654e0395cf4c6bac0","isrc":"SEYOK1616195","name":"Time Is an Illusion","registered_at":"2026-06-09T09:26:32Z","spotify_id":"5hD6qPoWHZSBuKmCifw42S","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1977bef6cf1cbe0c4e3be0011244837fd389d62fb4a8362654e0395cf4c6bac0. 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/5hD6qPoWHZSBuKmCifw42S.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/5hD6qPoWHZSBuKmCifw42S.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f3d67cd4ac8ffe9a7f1777bfdcfd0e4c501ab19028e236d6763658d119d0ee8. 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/5YLoF3ip8ahnm60Jar22Ok.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/5YLoF3ip8ahnm60Jar22Ok.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b8ade6ffd335a450761a0412a46361553fc92cead2aa9458cd1dbc5da11f65f. 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/4PQzHqY2X887wlD89HTnOu.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/4PQzHqY2X887wlD89HTnOu.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec75d8584ec7d3972dd72bcc116b10f2e8b7b4a196193389ff2566e9203f200c. 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/27raUIGEILjFydu2YCelNQ.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/27raUIGEILjFydu2YCelNQ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb85ef5133f1a099f71402d10a8d9829f0c5cd135d8abcb74947293a53b392758. 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/5Xla4TcaAcFMTTUxyAeuRZ.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/5Xla4TcaAcFMTTUxyAeuRZ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b78b3bc36634ac57240394f308067438f275625affc896bc4e5a3b006fd7662. 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/18HFy2FJy6XX2MOUWzQNkY.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/18HFy2FJy6XX2MOUWzQNkY.
{"copyright_id":"0x9dd79bdcfc03cdfdbe6923c59083ac7d4ebb49480af1a9852ad31fb221c51f33","isrc":"GBKPL1671238","name":"Calm Down","registered_at":"2026-06-06T18:28:38Z","spotify_id":"6TcIBL3abOsbVvBbNfZJQK","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dd79bdcfc03cdfdbe6923c59083ac7d4ebb49480af1a9852ad31fb221c51f33. 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/6TcIBL3abOsbVvBbNfZJQK.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/6TcIBL3abOsbVvBbNfZJQK.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9a83e89af320b89be232e7b11cda0d7be00a215ff64a5ba60f876a472db6e29. 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/3mWHnOfiwH1bA9rBkCYvqx.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/3mWHnOfiwH1bA9rBkCYvqx.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x255d45a48a6e80924647931a9296b999e9b143f8516ed38f1f69ac751c911c3c. 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/4PXPkS2GbkTSzgm6miAaxw.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/4PXPkS2GbkTSzgm6miAaxw.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb53da9fdd7a83bddf8e4fa7555ecb7b66d9ca7dcba44a41767b2375e947765f. 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/2nVxh8XsyJTIh2UGvOUHku.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/2nVxh8XsyJTIh2UGvOUHku.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa91f6a1f8a4072c4e3d14ff6e572ae83769a73c436a2525737db16c45137c176. 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/3YWo9HTVyOH7Iq27tZkD9H.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/3YWo9HTVyOH7Iq27tZkD9H.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20197b2397e9b497a15509d54f284e7e5da69337c38bf3b6b05c4173e1cc7691. 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/7HSfwkFm04ivPGDDYlNT0f.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/7HSfwkFm04ivPGDDYlNT0f.
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