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 0x582960afed77148ce18545b0a04f62ea25db2b0b283b80c844ed2ced79deec48. 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/c0ba7ca5-7161-4190-9dd2-7b82563b682b.json and https://artists.proofprofile.net/proofs/artist/c0ba7ca5-7161-4190-9dd2-7b82563b682b.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 0x79d5ad45d705105a9b69f6e7cd44e0d2c3e80c91fa1f5b159807004ad6d1003f. 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/2cSulqF1XePQV2I6ojvwcq.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/2cSulqF1XePQV2I6ojvwcq.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7c592a4e1d3d14aafe437f322d48cf9b5e6d06ce6044415969a7823143c4e42. 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/6OEAB5f9M3v8cz4hvWgpqW.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/6OEAB5f9M3v8cz4hvWgpqW.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bd18a30f4ff8b34fd1fc523dba4fe6ab7d96bf5c952402e47ffcbcc10e88e6c. 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/0BjfCXSREeb8z6zgkCz9zP.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/0BjfCXSREeb8z6zgkCz9zP.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfabedfb11975eae795b4a453f315df08f842b3056967e22d6ba87ea5f784bf7e. 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/5aYmiF3pjGxraHo3WXEUDl.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/5aYmiF3pjGxraHo3WXEUDl.
{"copyright_id":"0x2808865538dd2edba21f1097d4e091c9eda7aba68350ad7c644e5ee66ddcf6cf","isrc":"USUYG1099910","name":"Screwed It Up Again","registered_at":"2026-06-27T01:06:45Z","spotify_id":"4qxDYylDsAqDfihmcZqmri","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2808865538dd2edba21f1097d4e091c9eda7aba68350ad7c644e5ee66ddcf6cf. 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/4qxDYylDsAqDfihmcZqmri.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/4qxDYylDsAqDfihmcZqmri.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52be383793c8fbbc725a4a21270e352e0b7c289d7573a0f91d10cf7ed2012540. 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/3OvpPFBnvymTrQgriPfwoe.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/3OvpPFBnvymTrQgriPfwoe.
{"copyright_id":"0xab2e1ea7881e302da10b5a714332fd161788f9202cee03ce457c2c18f38279d3","isrc":"USAT21704844","name":"God Wants Me to Ball (feat. London Jae)","registered_at":"2026-06-07T08:39:42Z","spotify_id":"60KjxS7TQLVtLxHyx5abaq","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab2e1ea7881e302da10b5a714332fd161788f9202cee03ce457c2c18f38279d3. 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/60KjxS7TQLVtLxHyx5abaq.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/60KjxS7TQLVtLxHyx5abaq.
Out My Face (feat. T.I., Shad Da God, Young Thug, London Jae) - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dceb650137c799b55112710191635dd16b0ed5a888babb9912048068a531f0f. 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/7Cdlsb04AIEXBtWKDLe6Ju.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/7Cdlsb04AIEXBtWKDLe6Ju.
{"copyright_id":"0xacd5c82a131dce3b5cf5e6fe4b48846e24b185da89ec1781c7ea7e7de13eeacb","isrc":"QZ2UA1700092","name":"Want Smoke","registered_at":"2026-06-23T03:36:48Z","spotify_id":"22NjfjsXtiXcV02DG1HQkH","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacd5c82a131dce3b5cf5e6fe4b48846e24b185da89ec1781c7ea7e7de13eeacb. 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/22NjfjsXtiXcV02DG1HQkH.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/22NjfjsXtiXcV02DG1HQkH.
{"copyright_id":"0x47d20e7f20e79ebc5af3d1d6e1763f26b41fdbfd7764c93e3c9749ecda8da1ad","isrc":"QZ2UA1700096","name":"Trappin On Forgis","registered_at":"2026-06-25T08:06:00Z","spotify_id":"6BrdpKApfQIhIcPYoYDWr8","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47d20e7f20e79ebc5af3d1d6e1763f26b41fdbfd7764c93e3c9749ecda8da1ad. 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/6BrdpKApfQIhIcPYoYDWr8.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/6BrdpKApfQIhIcPYoYDWr8.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ebd56bf340625abae4e672308a26101fd11bbdf5214366d0f9e6bc4b08b0bfb. 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/0KfDgv8YhizhG346fNo8uY.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/0KfDgv8YhizhG346fNo8uY.
{"copyright_id":"0xb80ebbc93d5ea33d841267b8d447f1d22bcfffaa254a8dce21d62db60cd44a93","isrc":"QZ2UA1700106","name":"My Block","registered_at":"2026-06-25T19:28:49Z","spotify_id":"38Qk6hwTehcv8EkFl26zPO","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb80ebbc93d5ea33d841267b8d447f1d22bcfffaa254a8dce21d62db60cd44a93. 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/38Qk6hwTehcv8EkFl26zPO.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/38Qk6hwTehcv8EkFl26zPO.
{"copyright_id":"0x2e58f2d9f8b0540ececae3fef73537b366acdf1d6211b504644cc275ce65af49","isrc":"USAE81600556","name":"Land Of The Lost","registered_at":"2026-06-26T22:57:43Z","spotify_id":"5fLTHFIhXT8wibYjqaKYwa","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e58f2d9f8b0540ececae3fef73537b366acdf1d6211b504644cc275ce65af49. 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/5fLTHFIhXT8wibYjqaKYwa.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/5fLTHFIhXT8wibYjqaKYwa.