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 0x3f01ca7dc220fe526e997c7373110e1b32d0f56794ce0511dad71893742446c2. 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/63658d49-01d9-4df6-a1d3-a43e3fb090df.json and https://artists.proofprofile.net/proofs/artist/63658d49-01d9-4df6-a1d3-a43e3fb090df.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 0x3a9db78829a29c7e9bf39c7806fb9b653de4370e3ffe5e2badc9c6b2ce311540. 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/0drdd0uktz5UqJKEIuF8Ba.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/0drdd0uktz5UqJKEIuF8Ba.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x719b270f74f127ad820517691bb102c3c7dda23b813ad8ad95b31f0cc4e99409. 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/34WQk1j066aTQbzAiM7Kca.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/34WQk1j066aTQbzAiM7Kca.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd403e9c88e424b6fd4ea9109897b2ea5847c0ede88a883137435461259f9eaa6. 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/66Ikk0LhfNNtAe57LKQvoA.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/66Ikk0LhfNNtAe57LKQvoA.
{"copyright_id":"0xff5d9daed665e4f88cf46fff45277dc3074c7a5857d49a7d6c087de47a8253ca","isrc":"QZFZ22364724","name":"Music Sounds Better With You","registered_at":"2026-06-29T03:41:37Z","spotify_id":"7kn8s9JWYb8SyQkxiww9Kb","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff5d9daed665e4f88cf46fff45277dc3074c7a5857d49a7d6c087de47a8253ca. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7kn8s9JWYb8SyQkxiww9Kb.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/7kn8s9JWYb8SyQkxiww9Kb.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a78d05c9111551759e9984e3726f519c283c2518ad79682b392ce3b35f86904. 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/0tNjTgWOaUveqYZYiJmBYS.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/0tNjTgWOaUveqYZYiJmBYS.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44ff8ef369d1f86f622e7cf79a0fc2402617fdc0475cb7dc4b6560295c206c20. 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/4XYsJH57RxH5YTCmC2T4ma.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/4XYsJH57RxH5YTCmC2T4ma.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf60e3ef398f8fc081e2efd79588c2054dde7f3758904ff9825435bd33590f582. 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/3SOozMpaW4RUbv2iDp6y63.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/3SOozMpaW4RUbv2iDp6y63.
Kitsuné Musique Mixed by Amatan (DJ Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa42fcf1b0012752c6b9dc38ae1f81dc19232906675599b4ddd375fbdc08f12b1. 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/7zUjzr5a4b142tTDKFr17Y.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/7zUjzr5a4b142tTDKFr17Y.
Kitsuné Musique Mix by GOODGOODBYE (DJ Mix)
Kitsuné Musique Mixed by Maximono (DJ Mix)
{"copyright_id":"0x2e95027fd3adb3d96e888746330b22a237d229278a5efdbf7d2ac92abe1c1d3f","isrc":"FRU702100017","name":"Be with You Tonight - Mixed","registered_at":"2026-06-08T18:36:45Z","spotify_id":"0KLFmNMmzPi0MIazydRMyB","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e95027fd3adb3d96e888746330b22a237d229278a5efdbf7d2ac92abe1c1d3f. 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/0KLFmNMmzPi0MIazydRMyB.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/0KLFmNMmzPi0MIazydRMyB.
Café Kitsuné Mixed by Young Franco (Night)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf09d0b38eb80285f5073953769f39ccede4752c4ca797a20af57303e214a0738. 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/6fwEXZVa7PnrY5IOxNmhIg.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/6fwEXZVa7PnrY5IOxNmhIg.
{"copyright_id":"0x54819c137eba9294eaa52e1053e82e0e8903e52304d09a7921ffbd57ec337b46","isrc":"CAF5R2000104","name":"Tribute - La Felix Remix","registered_at":"2026-06-26T23:23:56Z","spotify_id":"4colVcvrwad0lKYk8RfrYp","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54819c137eba9294eaa52e1053e82e0e8903e52304d09a7921ffbd57ec337b46. 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/4colVcvrwad0lKYk8RfrYp.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/4colVcvrwad0lKYk8RfrYp.
Kitsuné Musique Mixed by Eric Sharp (DJ Mix)
{"copyright_id":"0x4a80b8e959b3c63bcb016252714fa7aee66aae64220aa1dfb8be10220d5dc7d7","isrc":"QM6N21910787","name":"Always Be Loving You - La Felix Remix","registered_at":"2026-06-10T00:50:45Z","spotify_id":"08pjLAiLoNja93DtELW5YS","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a80b8e959b3c63bcb016252714fa7aee66aae64220aa1dfb8be10220d5dc7d7. 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/08pjLAiLoNja93DtELW5YS.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/08pjLAiLoNja93DtELW5YS.