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 0x22f997256418926d0edb44ef7694ded90bc732d970d541e2fe1e0f02a373dca3. 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/fa51c911-b60e-4978-a8f7-f1c9f1c76cc5.json and https://artists.proofprofile.net/proofs/artist/fa51c911-b60e-4978-a8f7-f1c9f1c76cc5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x04bbc704aca54011a3ff1b8f9649f39272785e558b1aedb7af7895f45bcc7907","isrc":"DEXC82300083","name":"Wild Ride - A COLORS SHOW","registered_at":"2026-06-05T20:25:54Z","spotify_id":"4Ypa7u8GYWX0u0wP5wntsU","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 0x04bbc704aca54011a3ff1b8f9649f39272785e558b1aedb7af7895f45bcc7907. 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/4Ypa7u8GYWX0u0wP5wntsU.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/4Ypa7u8GYWX0u0wP5wntsU.
{"copyright_id":"0x302ca1db651056afb212b4f7a66c4c78051bb2b19788e30461fce81b433818ec","isrc":"QMFME2399827","name":"Lazizi - Spotify Singles - Cover","registered_at":"2026-06-20T20:42:15Z","spotify_id":"4rutxh0KdzzxPNR75CCgJR","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x302ca1db651056afb212b4f7a66c4c78051bb2b19788e30461fce81b433818ec. 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/4rutxh0KdzzxPNR75CCgJR.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/4rutxh0KdzzxPNR75CCgJR.
{"copyright_id":"0x68ba36c1b12a8c21b3c0af4e6e635c86b034e3eee3492d0a9b0175e61bc545d9","isrc":"QMBZ92376095","name":"Late Night Check Up","registered_at":"2026-06-22T22:12:18Z","spotify_id":"0KhSbSyC5vElU3xGFepc5P","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68ba36c1b12a8c21b3c0af4e6e635c86b034e3eee3492d0a9b0175e61bc545d9. 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/0KhSbSyC5vElU3xGFepc5P.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/0KhSbSyC5vElU3xGFepc5P.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0117f1c4bf14ad96803bb42783b186d2ae21b3a6a683a7a2daa50a7c23870b4. 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/0ufIj2swMeqQksU75dVSUJ.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/0ufIj2swMeqQksU75dVSUJ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fb7b6b34665241a12c447d082fcbb7ddf2db5c79890356010fda66502318e68. 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/1riqbH7Qd4VEXaWBd0L9YA.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/1riqbH7Qd4VEXaWBd0L9YA.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8e52dc8da7146c42966f19d692a11f8492e28de37bf2a9ec01932ee968283bf. 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/1Fkq3SEa7peWIW1HonbYHU.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/1Fkq3SEa7peWIW1HonbYHU.
{"copyright_id":"0x10a3989ae902867609ec78cf246f337080f45de5d8e5bad56f40715f4ba1c298","isrc":"ZA56E2201557","name":"Aki Pesa Wewe (feat. Xenia Manasseh)","registered_at":"2026-06-21T16:31:33Z","spotify_id":"5oTZ9rqzk0PikwiSh1ZCWv","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10a3989ae902867609ec78cf246f337080f45de5d8e5bad56f40715f4ba1c298. 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/5oTZ9rqzk0PikwiSh1ZCWv.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/5oTZ9rqzk0PikwiSh1ZCWv.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f30f81166a8e5658d1a75ad4a469c4b23eadea9d02a9f7f9abe38cfd9564568. 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/00ti8nTfpzn8rGt9tqBfTI.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/00ti8nTfpzn8rGt9tqBfTI.
{"copyright_id":"0xc8a0594aea3436f3cf5495dbff3b1106c5a84226f493e70e5db2acc3523ecfd9","isrc":"GBMCZ0601528","name":"Met at the River","registered_at":"2026-06-22T07:41:03Z","spotify_id":"2sxQ1OkdtF7GyH1SVpDcI4","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8a0594aea3436f3cf5495dbff3b1106c5a84226f493e70e5db2acc3523ecfd9. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2sxQ1OkdtF7GyH1SVpDcI4.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/2sxQ1OkdtF7GyH1SVpDcI4.
National Treasure (feat. Xenia Manasseh and Vallerie Muthoni)
{"copyright_id":"0x78b7532b6af4a72ec222bba392ce441d08afd88d07af12c0b9f9a0a27bb5a714","isrc":"ZA56E2101337","name":"National Treasure (feat. Xenia Manasseh and Vallerie Muthoni)","registered_at":"2026-06-21T04:19:30Z","spotify_id":"5gNLOvkMMasuUTxBjURN6V","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78b7532b6af4a72ec222bba392ce441d08afd88d07af12c0b9f9a0a27bb5a714. 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/5gNLOvkMMasuUTxBjURN6V.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/5gNLOvkMMasuUTxBjURN6V.
{"copyright_id":"0xc8a0594aea3436f3cf5495dbff3b1106c5a84226f493e70e5db2acc3523ecfd9","isrc":"GBMCZ0601528","name":"Met at the River","registered_at":"2026-06-22T07:41:03Z","spotify_id":"6fKKzzrx5JEWs8x7CzZANf","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8a0594aea3436f3cf5495dbff3b1106c5a84226f493e70e5db2acc3523ecfd9. 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/6fKKzzrx5JEWs8x7CzZANf.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/6fKKzzrx5JEWs8x7CzZANf.
{"copyright_id":"0x2aab7d8b894c3a02aad5319a254d0d079bd59c3def66fe84190bc1472dccfe07","isrc":"QMFME2167957","name":"Say You Love Me","registered_at":"2026-06-09T07:05:59Z","spotify_id":"0zCAxn0i5tKnR2Jv7XQmqP","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aab7d8b894c3a02aad5319a254d0d079bd59c3def66fe84190bc1472dccfe07. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0zCAxn0i5tKnR2Jv7XQmqP.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/0zCAxn0i5tKnR2Jv7XQmqP.
{"copyright_id":"0x2aab7d8b894c3a02aad5319a254d0d079bd59c3def66fe84190bc1472dccfe07","isrc":"QMFME2167957","name":"Say You Love Me","registered_at":"2026-06-09T07:05:59Z","spotify_id":"5RZcfqPK8ZMQ9gGm7b1OJ1","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aab7d8b894c3a02aad5319a254d0d079bd59c3def66fe84190bc1472dccfe07. 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/5RZcfqPK8ZMQ9gGm7b1OJ1.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/5RZcfqPK8ZMQ9gGm7b1OJ1.
{"copyright_id":"0xcaa3311b3d03f6002d8e09efe9522528fe4cb6b21d5062b612abc2baf754ce0b","isrc":"SE6XW2324040","name":"Love Letters","registered_at":"2026-06-11T04:22:41Z","spotify_id":"6OM5yjhSYR68YwS4fADK3O","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaa3311b3d03f6002d8e09efe9522528fe4cb6b21d5062b612abc2baf754ce0b. 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/6OM5yjhSYR68YwS4fADK3O.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/6OM5yjhSYR68YwS4fADK3O.