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 0x458b930947957c3f8b37c211531a1dc2c666ad25ee9566af5765a51a422a27f6. 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/f05d8529-f97b-438e-8cf1-8c46b639e81a.json and https://artists.proofprofile.net/proofs/artist/f05d8529-f97b-438e-8cf1-8c46b639e81a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xe2b7652a3d5d1ccd6906bc8d85263c74f8d26c3706d761a2dc6c6bde208e75f0","isrc":"GBBZV0652229","name":"Wheat & Tears","registered_at":"2026-06-22T10:28:34Z","spotify_id":"2vlRIzuGxieVUfpsroLxwK","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 0xe2b7652a3d5d1ccd6906bc8d85263c74f8d26c3706d761a2dc6c6bde208e75f0. 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/2vlRIzuGxieVUfpsroLxwK.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/2vlRIzuGxieVUfpsroLxwK.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f853b0e6ed539882033f51166d3505d8035f5532005b87d204066c80464af09. 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/6w3kPzVLVBy8b21gJcdxFl.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/6w3kPzVLVBy8b21gJcdxFl.
{"copyright_id":"0xe9b5f3b8daf0f409011e4816ae767994a937832d2c9ffdfc60a7d4c1958bd290","isrc":"GBBZV0652231","name":"This Morning","registered_at":"2026-06-26T00:36:19Z","spotify_id":"2XVK5DsarByRHdtEhhouZy","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9b5f3b8daf0f409011e4816ae767994a937832d2c9ffdfc60a7d4c1958bd290. 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/2XVK5DsarByRHdtEhhouZy.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/2XVK5DsarByRHdtEhhouZy.
{"copyright_id":"0xbf428ea1283e54f64d6d5a71526ac1b71c4d7cada5ee3dc55819d5aa28e9a44b","isrc":"GBBZV0652278","name":"No Time","registered_at":"2026-06-26T00:39:13Z","spotify_id":"1HlGfoPyzsVhOCeB2jOiKT","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf428ea1283e54f64d6d5a71526ac1b71c4d7cada5ee3dc55819d5aa28e9a44b. 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/1HlGfoPyzsVhOCeB2jOiKT.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/1HlGfoPyzsVhOCeB2jOiKT.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa557e4d70ff6b58b94d4e5fc62043daea983686400ac4208265a8231f7925fde. 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/6nwwNkHzByI1uOV2fxVwEG.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/6nwwNkHzByI1uOV2fxVwEG.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cd5fec0651395d63fb6637094e972d68f864ce22dc372a7426ca31ccc87f3b2. 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/41udcxIcuYRt76dwNRmRKv.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/41udcxIcuYRt76dwNRmRKv.
{"copyright_id":"0xf9cb4d84afaf23e51763ac130bb1cafa5466c1d394660a5f86ff2fe902d596f6","isrc":"USVPR0611499","name":"My Princess Gone","registered_at":"2026-06-04T11:04:12Z","spotify_id":"1PvRssCAC6PXnl9xpbcOBm","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9cb4d84afaf23e51763ac130bb1cafa5466c1d394660a5f86ff2fe902d596f6. 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/1PvRssCAC6PXnl9xpbcOBm.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/1PvRssCAC6PXnl9xpbcOBm.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1765b6f94452208ca160f79a290cca643c2163c9d97909d03412f318dd938a44. 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/52WnXmfvxS4V42iRdAxEHJ.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/52WnXmfvxS4V42iRdAxEHJ.
{"copyright_id":"0xefcf4264b874d45a7ffb3e5c235f88cdcfd1a17c0060fa2edcc578b30413c16f","isrc":"FRX872151593","name":"Get Exposed","registered_at":"2026-06-05T23:46:38Z","spotify_id":"7Ls0hoPewzHkFrsdVSOEH4","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefcf4264b874d45a7ffb3e5c235f88cdcfd1a17c0060fa2edcc578b30413c16f. 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/7Ls0hoPewzHkFrsdVSOEH4.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/7Ls0hoPewzHkFrsdVSOEH4.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x795d12f2834e62a955248a9bd28ef008192047d2c4bcab5fd52fe9539877abcd. 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/0Tg5qWdPemkSCtBl7e5UkS.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/0Tg5qWdPemkSCtBl7e5UkS.
Welcome To The Jungle, Vol. 3: The Ultimate Jungle Cakes Drum & Bass Compilation
{"copyright_id":"0x7da5b023befab95114b878909a684a68db3f8cd14a1f82f76ca1c8ff7bedcec3","isrc":"GBFG91512769","name":"Blazing Fire - Benny Page Remix","registered_at":"2026-06-10T17:07:07Z","spotify_id":"0ZwHtY6jD9Yxa6vku31AjA","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7da5b023befab95114b878909a684a68db3f8cd14a1f82f76ca1c8ff7bedcec3. 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/0ZwHtY6jD9Yxa6vku31AjA.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/0ZwHtY6jD9Yxa6vku31AjA.