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 0x30a5fb999e76e6619893b85ae39fd046ee0a285b8d6cff20158750716520a240. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/188e640a-9bb4-4adb-a7f6-fc9f440f0549.json and https://artists.proofprofile.net/proofs/artist/188e640a-9bb4-4adb-a7f6-fc9f440f0549.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x630d4c6405a1d6ab2ca346ee8561bdaaf79f5c6690ce5e3e495bd2e2b6c6910a","isrc":"DEU671401536","name":"In the Ballroom","registered_at":"2026-06-09T16:52:12Z","spotify_id":"3MTNR2L3EJuNDOSoplNMQp","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 0x630d4c6405a1d6ab2ca346ee8561bdaaf79f5c6690ce5e3e495bd2e2b6c6910a. 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/3MTNR2L3EJuNDOSoplNMQp.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/3MTNR2L3EJuNDOSoplNMQp.
{"copyright_id":"0x50ec2defe456c66d1193e23cdc0bd43d1ebc98aaef7e1cf4a8d0bef53a5f5de6","isrc":"DEU671401537","name":"Pepper Labejia","registered_at":"2026-06-10T03:19:00Z","spotify_id":"6oiM9h31oqe98cuhgeBZIu","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50ec2defe456c66d1193e23cdc0bd43d1ebc98aaef7e1cf4a8d0bef53a5f5de6. 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/6oiM9h31oqe98cuhgeBZIu.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/6oiM9h31oqe98cuhgeBZIu.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0a6fba3e95fa8738b437b232408937024732dcc934b9b5dd51d738785ec1bd2. 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/2KZbApMMfVn0tGvQP2nXrx.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/2KZbApMMfVn0tGvQP2nXrx.
Sentiment Acide - Jennifer Cardini Remix
{"copyright_id":"0x8b1b4d559201e788a5c11c7507a54674c09027632728dcba26b7fe6d3148a888","isrc":"FR9W11315073","name":"Sentiment Acide - Jennifer Cardini Remix","registered_at":"2026-06-05T08:22:40Z","spotify_id":"7p4GvmMRii6TjygWSg3Vhr","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b1b4d559201e788a5c11c7507a54674c09027632728dcba26b7fe6d3148a888. 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/7p4GvmMRii6TjygWSg3Vhr.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/7p4GvmMRii6TjygWSg3Vhr.
The Jackal - Massimiliano Pagliara Remix
Finders Keepers - La Royale and Yesco Remix
Single Serving Friend - Demian "Rouge" Remix
Trance in Mexico - Justin Robertson's Deadstock 33s Remix
The Jackal - Pulp Disco and The Outcasts Remix
Finders Keepers - Richard Fearless Remix
Special Places - Extended (Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x440834c3bd270f7d4c8823f9733b5513276770744bc4dc681833bf4c4cd6d618. 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/7tVOFYFzwGCs461kzdJVqI.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/7tVOFYFzwGCs461kzdJVqI.
{"copyright_id":"0x103bcc06746fbf247e84a5d0604c2a4535db7edeeb05d9bae2a66ffc91ff1111","isrc":"FRPFO1900180","name":"Nuclear Bomb","registered_at":"2026-06-22T06:08:31Z","spotify_id":"4RFxRn7YqwxoZOzFAurSTz","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x103bcc06746fbf247e84a5d0604c2a4535db7edeeb05d9bae2a66ffc91ff1111. 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/4RFxRn7YqwxoZOzFAurSTz.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/4RFxRn7YqwxoZOzFAurSTz.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb041ef44369abbb0dda5d74cda6048c0a33d0a34761747302e423976b6212958. 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/7GplwrrJA7j24WV5oATGU2.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/7GplwrrJA7j24WV5oATGU2.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25b46894f3ee75846e3b261c53fa3da0ecf861154d677de4e4d2b9efbddde961. 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/4RUqBrue1fn1U56OX72S8n.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/4RUqBrue1fn1U56OX72S8n.
{"copyright_id":"0xe4b83fc608f7a604c086e877b2e8db0557d05999d0b79dd24e8ab25510f22fa3","isrc":"FRPFO1900210","name":"No Shangri La","registered_at":"2026-06-20T09:58:07Z","spotify_id":"5foqt8rbcJBuvIUy5KJDIy","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4b83fc608f7a604c086e877b2e8db0557d05999d0b79dd24e8ab25510f22fa3. 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/5foqt8rbcJBuvIUy5KJDIy.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/5foqt8rbcJBuvIUy5KJDIy.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb133f1dd59edf447c4489913c4f60f0136d114927a1122484baa316e26ebc3d. 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/4ANXrE4O7qTWk1YhNvsHR9.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/4ANXrE4O7qTWk1YhNvsHR9.
{"copyright_id":"0x103bcc06746fbf247e84a5d0604c2a4535db7edeeb05d9bae2a66ffc91ff1111","isrc":"FRPFO1900180","name":"Nuclear Bomb","registered_at":"2026-06-22T06:08:31Z","spotify_id":"6kzzhrG9jKXt8HM8iIvQXg","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x103bcc06746fbf247e84a5d0604c2a4535db7edeeb05d9bae2a66ffc91ff1111. 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/6kzzhrG9jKXt8HM8iIvQXg.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/6kzzhrG9jKXt8HM8iIvQXg.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x440834c3bd270f7d4c8823f9733b5513276770744bc4dc681833bf4c4cd6d618. 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/4nyliyKOoczsAH5sUlUSbo.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/4nyliyKOoczsAH5sUlUSbo.
{"copyright_id":"0xbf9049c72198f9eefd830bfb41a87404ad7d0d6df4414bf8b683380dcf3090fb","isrc":"GBJX39002004","name":"Sex Gang","registered_at":"2026-06-26T22:48:11Z","spotify_id":"0mn2XsFDdOVXaWmKK6nWHs","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf9049c72198f9eefd830bfb41a87404ad7d0d6df4414bf8b683380dcf3090fb. 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/0mn2XsFDdOVXaWmKK6nWHs.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/0mn2XsFDdOVXaWmKK6nWHs.
The Cross Over (David Shaw and The Beat Remix)
City Lounge 2.0 : Chill & Dance to The Cream of Electronic & Pop Music
{"copyright_id":"0x8f9d4ddb34d4f6e724b6e37debde0d2b81e820076b45ef45f03de1aef460b665","isrc":"FRU661610102","name":"Waiting For The Stars","registered_at":"2026-06-04T09:58:25Z","spotify_id":"5MHnT8tTakjzZsiuHGxXyc","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f9d4ddb34d4f6e724b6e37debde0d2b81e820076b45ef45f03de1aef460b665. 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/5MHnT8tTakjzZsiuHGxXyc.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/5MHnT8tTakjzZsiuHGxXyc.
Twist In My Sobriety - David Shaw and The Beat Remix
{"copyright_id":"0x5ef2da622c43951d67df883a302ebba640fe7aebebd6eb72f1383da1f50ce268","isrc":"FR9W12240277","name":"Twist In My Sobriety - David Shaw and The Beat Remix","registered_at":"2026-06-25T09:52:29Z","spotify_id":"12qo3rVbidDzoCXjNJ8PRw","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ef2da622c43951d67df883a302ebba640fe7aebebd6eb72f1383da1f50ce268. 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/12qo3rVbidDzoCXjNJ8PRw.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/12qo3rVbidDzoCXjNJ8PRw.
Twist in My Sobriety - David Shaw and The Beat Remix Instrumental