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 0x5b28147db282cc817473623cddc0501f92a7a58b2775247817279cc0e5a6f950. 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/4ee33581-5b26-49d9-b8fb-f283f88864a5.json and https://artists.proofprofile.net/proofs/artist/4ee33581-5b26-49d9-b8fb-f283f88864a5.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 0x7a01883696a4cb45a7a46f49ce708e294879d9ddd3515c4ac319aab5ce948f0b. 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/4sqsDAAadc1jBXYeMIl54g.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/4sqsDAAadc1jBXYeMIl54g.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9de4c591ea07498990898dc247ecbe56df0c3f1122be22168036c16e5255ce2f. 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/5YlUhqrhQfROXXgU7oa3Rc.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/5YlUhqrhQfROXXgU7oa3Rc.
Ade Hudugana Mele Matte Matte Preethi (From "31 Days") (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44048a3aedc05603f0c2ecdcd0a1d2331581724b274720fdd7bf1bc227a7ba6c. 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/1460t7BG5ePuiH7Y6DkClm.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/1460t7BG5ePuiH7Y6DkClm.
{"copyright_id":"0xa20b57c2f48a9b79887c3ee3016f7a716d0a184e3cbd48682f2ae30612676a1b","isrc":"GBBPP2263267","name":"Rain Dance (Barsan Laagi)","registered_at":"2026-06-17T22:58:44Z","spotify_id":"2cihAaHfHYcVsGkcpmMNNv","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa20b57c2f48a9b79887c3ee3016f7a716d0a184e3cbd48682f2ae30612676a1b. 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/2cihAaHfHYcVsGkcpmMNNv.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/2cihAaHfHYcVsGkcpmMNNv.
{"copyright_id":"0xf84afda2ad4a3be2cec814ec3437668e4caf1adc52413e62ca5d7133324fbfb8","isrc":"GBBPP2263269","name":"Love and Cloudburst (Baucharan)","registered_at":"2026-06-25T18:37:37Z","spotify_id":"2LaBbKdWsYmlYBxZUOLoEg","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf84afda2ad4a3be2cec814ec3437668e4caf1adc52413e62ca5d7133324fbfb8. 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/2LaBbKdWsYmlYBxZUOLoEg.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/2LaBbKdWsYmlYBxZUOLoEg.
{"copyright_id":"0x340fe1c3766d0c9e6ba13851d709f26e0ba02182a4306a29dfd6f2072028f94a","isrc":"GBBPP2263271","name":"The Circle of Life (Madhaniyan)","registered_at":"2026-06-21T22:23:39Z","spotify_id":"7H8aMUOUKtpGlEvdt69oYk","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x340fe1c3766d0c9e6ba13851d709f26e0ba02182a4306a29dfd6f2072028f94a. 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/7H8aMUOUKtpGlEvdt69oYk.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/7H8aMUOUKtpGlEvdt69oYk.
Attack (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ca6e13619efdd402c06d751b17199b9ae8e12302f281d64cfe9a79c52d0e428. 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/4ibkc5OMTmOLt9jg1Vra9v.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/4ibkc5OMTmOLt9jg1Vra9v.
{"copyright_id":"0xe269d0af979bceabbedce5a32e8f1a63d57a954064ab7ebd038c070c38c08174","isrc":"INZ031410410","name":"Crazy Now","registered_at":"2026-06-10T16:30:34Z","spotify_id":"1vtZcYOBnTRmpGXWnDBv63","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe269d0af979bceabbedce5a32e8f1a63d57a954064ab7ebd038c070c38c08174. 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/1vtZcYOBnTRmpGXWnDBv63.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/1vtZcYOBnTRmpGXWnDBv63.
{"copyright_id":"0x3dfda0b8e850cedc6d518dabc7bc7c27bfe49cf5df18583e28171791e522f6f8","isrc":"INZ031410458","name":"Durga Gayatri Mantra","registered_at":"2026-06-25T18:43:58Z","spotify_id":"6KelszJs5JZ5Mxau4dBWwO","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dfda0b8e850cedc6d518dabc7bc7c27bfe49cf5df18583e28171791e522f6f8. 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/6KelszJs5JZ5Mxau4dBWwO.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/6KelszJs5JZ5Mxau4dBWwO.
{"copyright_id":"0xc6e38597950bec0572aeb01c5bf89be507b9dd28d1b1278ffabbf83c9e86c656","isrc":"FRX202131743","name":"Sha- Dobara","registered_at":"2026-06-05T13:25:41Z","spotify_id":"2ygS9eInDfG5prFbeeiEYC","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6e38597950bec0572aeb01c5bf89be507b9dd28d1b1278ffabbf83c9e86c656. 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/2ygS9eInDfG5prFbeeiEYC.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/2ygS9eInDfG5prFbeeiEYC.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4542e4d24a040c920fa3bd4457a37b2d7bb12c96998d698100741b4da2ae1ca9. 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/4WaGtwSOWl5iECs36N27VC.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/4WaGtwSOWl5iECs36N27VC.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49e76d9f04910d21d7fe68c2b722b861cc94ee284ab837c17c458135490d8deb. 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/1NxUTUf4rQqtnux7QA9hoc.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/1NxUTUf4rQqtnux7QA9hoc.
{"copyright_id":"0x1ce32a47d6285efbced93922012e2f925f67d50a3ba9cb4bc3de4fd0adbda79b","isrc":"QMBZ92470072","name":"Akele Hum - Slowed + Reverb","registered_at":"2026-06-19T10:02:33Z","spotify_id":"38BR88F8Fb47fHuhTiDboE","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ce32a47d6285efbced93922012e2f925f67d50a3ba9cb4bc3de4fd0adbda79b. 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/38BR88F8Fb47fHuhTiDboE.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/38BR88F8Fb47fHuhTiDboE.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a4105c38420fcc9135cd4f53a373263b85dddf64d50465c196a9d109ce57e70. 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/0FZtSZzYEyKQVteQQflNVt.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/0FZtSZzYEyKQVteQQflNVt.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82d700bd53c6f7635e7137571052bcb1514f440d1e522d885813177e6a214df4. 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/5xICtZ0XnQeqnVTl18aUPg.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/5xICtZ0XnQeqnVTl18aUPg.