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 0x80ce1befebfbb248f209cacdb527b853b3eca3678e51bd845d27dfde3a7db136. 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/fbc5e130-e2f4-4fe9-8075-b353f9da1ffc.json and https://artists.proofprofile.net/proofs/artist/fbc5e130-e2f4-4fe9-8075-b353f9da1ffc.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 0xec95190dd222c447384607af0f097180aa70f8846b72734c0b839fd7962d410d. 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/0DDOhEPI2jRoy4juqa0hZQ.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/0DDOhEPI2jRoy4juqa0hZQ.
{"copyright_id":"0x0ec29929fb5bae8db7d5fa192695f4fe914eabd2db6afa3ebb72b1b7f341008f","isrc":"GB7YL2100140","name":"Dead Love","registered_at":"2026-06-20T10:44:08Z","spotify_id":"6VZMOVWMmN1RythABvCKUH","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ec29929fb5bae8db7d5fa192695f4fe914eabd2db6afa3ebb72b1b7f341008f. 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/6VZMOVWMmN1RythABvCKUH.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/6VZMOVWMmN1RythABvCKUH.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32e2ef058cbca3f5cb7f033496387d8a226a7ac96925c860eed8f57d837ba648. 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/5fRfNIzmtZPbKv9yVEz5hA.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/5fRfNIzmtZPbKv9yVEz5hA.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08201c8b87d6391f0517bb5766492e8375e2a56102bc0377a01e0fbbeb3aa7de. 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/58YedaZgMnkRfSNBpCN1zL.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/58YedaZgMnkRfSNBpCN1zL.
The Only Difference Between Me And God Is I Don't Take Days Off
Only Love Can Save Us Now - Oddprophet Remix
{"copyright_id":"0x5bafc30d75a0c3c4dd04dac19969e45d825edc6231cc3fc53b667d6da4a27118","isrc":"USRC12301542","name":"Only Love Can Save Us Now - Oddprophet Remix","registered_at":"2026-06-25T13:41:34Z","spotify_id":"5qSjXzmkSteK7LJP3EqBhv","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bafc30d75a0c3c4dd04dac19969e45d825edc6231cc3fc53b667d6da4a27118. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5qSjXzmkSteK7LJP3EqBhv.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/5qSjXzmkSteK7LJP3EqBhv.
{"copyright_id":"0x53a08b0e367a9f98ad22495da4ab363a6f1cf34001f8aa7264cd1b81f7ead7ff","isrc":"GB7YL2100155","name":"Disrespect - Oddprophet Remix","registered_at":"2026-06-22T02:37:23Z","spotify_id":"3fGLum1wv6LKzVgwFdhc9W","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53a08b0e367a9f98ad22495da4ab363a6f1cf34001f8aa7264cd1b81f7ead7ff. 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/3fGLum1wv6LKzVgwFdhc9W.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/3fGLum1wv6LKzVgwFdhc9W.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x644c3a53067afc40b3ff20ccc330674989e158f5021142b400c54451b6d28098. 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/7ETCOsX5N0QLLCPKz8mENH.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/7ETCOsX5N0QLLCPKz8mENH.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc086220e849db028a36d2687f570f93bde1bdcf6bf01b36a4c15b788856471c1. 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/3857p2dL4EuqlcbODac9st.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/3857p2dL4EuqlcbODac9st.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x794a4362f6d0eb97b8574c3d416f72ca0f56602d0bb914e53703a7c4e6c85178. 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/342tG1EKJzgD3PssJkveVp.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/342tG1EKJzgD3PssJkveVp.