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 0x198a019af5f67bd51537c1d78402284ba79c3ec4c8529c93a45491f64e68c207. 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/671a0dfa-9a11-47dc-b330-615b0eba958e.json and https://artists.proofprofile.net/proofs/artist/671a0dfa-9a11-47dc-b330-615b0eba958e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Aggression, Chemie, Alkohol, Zukunftslos
{"copyright_id":"0x6385bcfad2952d768777ceb3dbb17a95b7aec9e9ccfeb93d846954dfa6f29397","isrc":"DELJ81482592","name":"Voll drauf","registered_at":"2026-06-23T13:49:54Z","spotify_id":"0nBJdtg5FsbZwqAHDdyudX","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 0x6385bcfad2952d768777ceb3dbb17a95b7aec9e9ccfeb93d846954dfa6f29397. 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/0nBJdtg5FsbZwqAHDdyudX.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/0nBJdtg5FsbZwqAHDdyudX.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28c0a11cd9055891e5dff6d0aead6508991b6c5833148b0e3dd1e927529e6040. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0XscgSVfIQAcxQIpmJRirh.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/0XscgSVfIQAcxQIpmJRirh.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70b9669d073dbb7b1c7a537d9f3934dbb1a0303e5e53e77619b04028030fbda7. 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/6b2147UWgGwIavribNOfag.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/6b2147UWgGwIavribNOfag.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce22a78f66577c30424ab16416942fa34d12556718cd72c134fab12d7b0dbb74. 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/7fyTrGjUAA9fFJLIugsOHF.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/7fyTrGjUAA9fFJLIugsOHF.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85f11632ac6587e69843ce4034c02f7ae6909b20450da7cd6f96756ef7232a17. 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/4F5jnTiIIbETIxoj63Wg0E.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/4F5jnTiIIbETIxoj63Wg0E.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x019245339629566f68e68beaa0eebc1a10f4b42623cfe30f5196148685bbabcf. 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/1JblszN7goYtqlFELmbP9W.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/1JblszN7goYtqlFELmbP9W.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9545d127cfd82089fc7e2ed42e6e7f4b5c50207e82a809904e0023f77ec7e457. 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/2iOjnSHb8GEIM9SxKeT5Vy.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/2iOjnSHb8GEIM9SxKeT5Vy.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8b65d68d5b4537a0b3910ab5f7b951944a1c3391e2175cc74ed4b8e48b06322. 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/3pe0RCTdkKWaZtkGufJRMb.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/3pe0RCTdkKWaZtkGufJRMb.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a4ec0ffa4a5d874292f47cd20c87fa3da595a9204e53dbc47160aea1167c790. 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/5vOpkyh81mVRyBuzrlnn6h.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/5vOpkyh81mVRyBuzrlnn6h.
{"copyright_id":"0x295e43330370de8c03e6b4038fd930a72df6bf7ecc3d5f3f41c029ac6bc00f36","isrc":"DGA092397646","name":"Ticket in das Paradies","registered_at":"2026-06-24T20:10:38Z","spotify_id":"38RGYIyZesbiN52u05GQHd","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x295e43330370de8c03e6b4038fd930a72df6bf7ecc3d5f3f41c029ac6bc00f36. 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/38RGYIyZesbiN52u05GQHd.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/38RGYIyZesbiN52u05GQHd.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb47423bf93d2651c717b965e0f4937cef3f55168b714d5a0526b54bcd12e3d50. 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/7DLkjqeRWK3SKinYBFHjlP.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/7DLkjqeRWK3SKinYBFHjlP.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef8a09d301bf69a601950cf6ee0f94867e4a1625b4da811b00f676b8b2c4becd. 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/4wcAQjZTjUdJARoiQI62rY.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/4wcAQjZTjUdJARoiQI62rY.
{"copyright_id":"0x6385bcfad2952d768777ceb3dbb17a95b7aec9e9ccfeb93d846954dfa6f29397","isrc":"DELJ81482592","name":"Voll drauf","registered_at":"2026-06-23T13:49:54Z","spotify_id":"2o9znCOOyjFUUbXP0mR5nI","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6385bcfad2952d768777ceb3dbb17a95b7aec9e9ccfeb93d846954dfa6f29397. 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/2o9znCOOyjFUUbXP0mR5nI.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/2o9znCOOyjFUUbXP0mR5nI.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc057fb35932ea953338daaa7174ec10cd08e153b222f93fff893996148eba0ad. 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/1GYNaRLjOeKxYoO7WnzB5n.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/1GYNaRLjOeKxYoO7WnzB5n.