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 0xb3dec0ed0e308bcebcfcaf4bc7a57bc8797f2d672991f03c1b8d892fc855626d. 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/caf5b575-69ad-4dac-841b-c9d8717fda9b.json and https://artists.proofprofile.net/proofs/artist/caf5b575-69ad-4dac-841b-c9d8717fda9b.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 0x5fb9a81e2b71a36c32701672a31cd63976a92efe61066791eab55e46587561b6. 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/7LjgiZygkjf7oBTgkbGjB8.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/7LjgiZygkjf7oBTgkbGjB8.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x793f1c2eb3b59318f2fde9fb5e0a5695614820c414a9c93bf8a97fb27f19f461. 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/0SXjFjGlwXzW5zxwHKTNJ5.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/0SXjFjGlwXzW5zxwHKTNJ5.
{"copyright_id":"0x7cd3810fe17982e286b78344f99f8a6f3f6edf57687dfafdc351244c38bb244d","isrc":"QMSEY2000703","name":"Nothing Better","registered_at":"2026-06-17T21:19:14Z","spotify_id":"7rN2OUOa611avqJutolrYR","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cd3810fe17982e286b78344f99f8a6f3f6edf57687dfafdc351244c38bb244d. 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/7rN2OUOa611avqJutolrYR.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/7rN2OUOa611avqJutolrYR.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08907440fcc8fb34ebe010ea8d9fe70c2f622049bb893ef828239d53820cbe74. 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/6zFYcAvBoEjqKWiFneXWf4.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/6zFYcAvBoEjqKWiFneXWf4.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca6014dd35268b6c7f866212319510986214d5ff1d8ba4a7e24e1ca91c0b3c72. 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/2WVuuVe2PjByC8Msp4xVbB.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/2WVuuVe2PjByC8Msp4xVbB.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad55b60d4fd69b0ed70b03ae28d7b74511952b352fab87b0c3e10994302a5060. 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/4cj37v8RhtuGpMC20quTgm.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/4cj37v8RhtuGpMC20quTgm.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x368b61d0f4c9f3e0227bbdba9efc6a2ee83107092bc041c1e898e0d6bb3a0bec. 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/7wP5brL17D96NmvXHF0v7E.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/7wP5brL17D96NmvXHF0v7E.
{"copyright_id":"0x7cd3810fe17982e286b78344f99f8a6f3f6edf57687dfafdc351244c38bb244d","isrc":"QMSEY2000703","name":"Nothing Better","registered_at":"2026-06-17T21:19:14Z","spotify_id":"3jzCh0FIPLg42kLDBDXmij","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cd3810fe17982e286b78344f99f8a6f3f6edf57687dfafdc351244c38bb244d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3jzCh0FIPLg42kLDBDXmij.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/3jzCh0FIPLg42kLDBDXmij.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x793f1c2eb3b59318f2fde9fb5e0a5695614820c414a9c93bf8a97fb27f19f461. 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/5ANfIDJ8UTJsDnW0sQw54e.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/5ANfIDJ8UTJsDnW0sQw54e.
{"copyright_id":"0xf66d72dbcc9de8988a4903522166def2a00258fadb3b99f373fe32ad4defc746","isrc":"QMSEY2000501","name":"Vibin' in Time","registered_at":"2026-06-09T07:24:22Z","spotify_id":"6tHOsH2c0e9qzbSrbAmKga","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf66d72dbcc9de8988a4903522166def2a00258fadb3b99f373fe32ad4defc746. 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/6tHOsH2c0e9qzbSrbAmKga.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/6tHOsH2c0e9qzbSrbAmKga.
{"copyright_id":"0x1abee444f12b00e0b9d6df7e4cc969d484175598d4bfca52f198695ea31c5b91","isrc":"QMSEY2000508","name":"I Can't Stop Loving You","registered_at":"2026-06-05T05:01:08Z","spotify_id":"1prlZc4XUJoeQJIUvFaxPn","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1abee444f12b00e0b9d6df7e4cc969d484175598d4bfca52f198695ea31c5b91. 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/1prlZc4XUJoeQJIUvFaxPn.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/1prlZc4XUJoeQJIUvFaxPn.
{"copyright_id":"0x4ec48355ff4bd1e400d028a54214959ec70d27a76c97d3cf1bfacef07d0e6bc1","isrc":"QMAAK2380316","name":"Pressure (feat. Jacob Webb)","registered_at":"2026-06-25T12:33:16Z","spotify_id":"2jqfXMvHBJoARtf61gn42N","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ec48355ff4bd1e400d028a54214959ec70d27a76c97d3cf1bfacef07d0e6bc1. 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/2jqfXMvHBJoARtf61gn42N.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/2jqfXMvHBJoARtf61gn42N.
You Remind Me (feat. Chris “Big Dog” Davis)
{"copyright_id":"0x2ad834a9220a58d15e062348c75ee42c89fddbc4a062d584270cedde01c89bd8","isrc":"QMAAK2380323","name":"Don’t Know Why","registered_at":"2026-06-25T10:32:36Z","spotify_id":"5UDGkhNf1rMQqXMJw8TMDX","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ad834a9220a58d15e062348c75ee42c89fddbc4a062d584270cedde01c89bd8. 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/5UDGkhNf1rMQqXMJw8TMDX.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/5UDGkhNf1rMQqXMJw8TMDX.