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 0x742349a453d8e02c55a61343667c645dbf3d17afd413de1c0f456368f5b815fc. 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/b7a369da-e558-489a-a712-f9af54ae8423.json and https://artists.proofprofile.net/proofs/artist/b7a369da-e558-489a-a712-f9af54ae8423.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xee39cf9ad8e743fc1820e8b80d1c2926a325fd0cc0597da6e709ccd4086d5dcc","isrc":"SEPQA0751552","name":"Dunka mig gul & blå","registered_at":"2026-03-20T05:20:47Z","spotify_id":"06rF4KXznb8dGAw2alHb4v","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 0xee39cf9ad8e743fc1820e8b80d1c2926a325fd0cc0597da6e709ccd4086d5dcc. 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/06rF4KXznb8dGAw2alHb4v.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/06rF4KXznb8dGAw2alHb4v.
{"copyright_id":"0xee39cf9ad8e743fc1820e8b80d1c2926a325fd0cc0597da6e709ccd4086d5dcc","isrc":"SEPQA0751552","name":"Dunka mig gul & blå","registered_at":"2026-03-20T05:34:40Z","spotify_id":"1yNSA85ykpxWVNj8HJdidI","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee39cf9ad8e743fc1820e8b80d1c2926a325fd0cc0597da6e709ccd4086d5dcc. 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/1yNSA85ykpxWVNj8HJdidI.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/1yNSA85ykpxWVNj8HJdidI.
{"copyright_id":"0x42b4a72c00b537247c5ed5209fb87844996ef9ac21e4efe2fac7562ee70d9120","isrc":"SEPQA0751591","name":"Dunka mig gul & blå - Payami Remix","registered_at":"2026-03-20T06:32:49Z","spotify_id":"0VsNZKev7ZM3Z6eeaQWX65","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42b4a72c00b537247c5ed5209fb87844996ef9ac21e4efe2fac7562ee70d9120. 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/0VsNZKev7ZM3Z6eeaQWX65.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/0VsNZKev7ZM3Z6eeaQWX65.
{"copyright_id":"0xe127ffed03b8bec9250bb1a4a530d54b58a8f16760d4a3471f28c72440fbeac2","isrc":"SEPQA0751662","name":"Gasen i botten","registered_at":"2026-03-20T06:38:58Z","spotify_id":"3QbXEQAOJKLctzu0tpurdO","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe127ffed03b8bec9250bb1a4a530d54b58a8f16760d4a3471f28c72440fbeac2. 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/3QbXEQAOJKLctzu0tpurdO.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/3QbXEQAOJKLctzu0tpurdO.
{"copyright_id":"0x8574a20da9c10d60b5d164116b5eb9a2d8bd8e2ed91c77b02557abdf43dcd10b","isrc":"SEPQA0800144","name":"Aj (Aj aj aj)","registered_at":"2026-03-20T05:57:01Z","spotify_id":"4LK7usee2GuJXkyA7pIrnT","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8574a20da9c10d60b5d164116b5eb9a2d8bd8e2ed91c77b02557abdf43dcd10b. 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/4LK7usee2GuJXkyA7pIrnT.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/4LK7usee2GuJXkyA7pIrnT.
{"copyright_id":"0xee39cf9ad8e743fc1820e8b80d1c2926a325fd0cc0597da6e709ccd4086d5dcc","isrc":"SEPQA0751552","name":"Dunka mig gul & blå","registered_at":"2026-03-20T05:56:07Z","spotify_id":"0Kho40qp8dvZYbzXHMfSWN","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee39cf9ad8e743fc1820e8b80d1c2926a325fd0cc0597da6e709ccd4086d5dcc. 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/0Kho40qp8dvZYbzXHMfSWN.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/0Kho40qp8dvZYbzXHMfSWN.
{"copyright_id":"0xa29387effb38c206f80bed2bf66fc554c50c14bd1e8f34524c942a837176a421","isrc":"SEPQA0751663","name":"Frihet (Gasen I Botten 1)","registered_at":"2026-03-20T05:56:56Z","spotify_id":"4ANQYxs5CSMW5a4HwKrxMI","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa29387effb38c206f80bed2bf66fc554c50c14bd1e8f34524c942a837176a421. 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/4ANQYxs5CSMW5a4HwKrxMI.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/4ANQYxs5CSMW5a4HwKrxMI.
{"copyright_id":"0xe127ffed03b8bec9250bb1a4a530d54b58a8f16760d4a3471f28c72440fbeac2","isrc":"SEPQA0751662","name":"Gasen i botten","registered_at":"2026-03-20T05:56:16Z","spotify_id":"15xy12ibazP3SpTEvzTwTj","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe127ffed03b8bec9250bb1a4a530d54b58a8f16760d4a3471f28c72440fbeac2. 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/15xy12ibazP3SpTEvzTwTj.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/15xy12ibazP3SpTEvzTwTj.
{"copyright_id":"0xeacae36458bb53fe2b7cf2c5a004001d63ed1a98fd0a845b69d57c17400175f3","isrc":"SEPQA0751670","name":"Nya tider hägrar","registered_at":"2026-03-20T05:56:18Z","spotify_id":"19kn4jzvbdxBgm4JIAZpPC","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeacae36458bb53fe2b7cf2c5a004001d63ed1a98fd0a845b69d57c17400175f3. 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/19kn4jzvbdxBgm4JIAZpPC.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/19kn4jzvbdxBgm4JIAZpPC.
{"copyright_id":"0x7bda729f80bf6bc09da2fb8e818ba5c8907eae607f8855073db59376ce39a405","isrc":"SEPQA0751666","name":"Ja vill va som du","registered_at":"2026-03-20T06:41:56Z","spotify_id":"2jkDi3JpotqjPbDF24Nxso","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bda729f80bf6bc09da2fb8e818ba5c8907eae607f8855073db59376ce39a405. 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/2jkDi3JpotqjPbDF24Nxso.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/2jkDi3JpotqjPbDF24Nxso.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x496e4ff05637f3363f9bde3b49667f8308d59f5dbb00f079594a5bade8911c7f. 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/330yuYfEWbJ46Tw64loWIE.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/330yuYfEWbJ46Tw64loWIE.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf93c68873afa8f35d1a779ba5641433d039e52f5f9325e39274faa2948cee876. 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/5UN7Bs0SkO7zcDO1OWJsAw.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/5UN7Bs0SkO7zcDO1OWJsAw.
{"copyright_id":"0xbce7a5ceeea9c1901fe18b6eece9be0b126d4cd367bb7241cab34accb6ef155a","isrc":"SEPQA0751672","name":"Farväl min vän","registered_at":"2026-03-20T05:56:56Z","spotify_id":"4ACOTU7sZ1Fo9BEjBNN18W","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbce7a5ceeea9c1901fe18b6eece9be0b126d4cd367bb7241cab34accb6ef155a. 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/4ACOTU7sZ1Fo9BEjBNN18W.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/4ACOTU7sZ1Fo9BEjBNN18W.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45609e1e7604b5b3d9f0dd9fcbadd65cd25e3248aacf174cdb345fd9a7a6d174. 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/5yjJhHRc0r8JugTATw4Cus.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/5yjJhHRc0r8JugTATw4Cus.
{"copyright_id":"0x8d8b75795fc57850e5f5419ba5d62e40265fbaaaf02cfa54458fa78cbf550e88","isrc":"SEPQA0751667","name":"Malmö Stad","registered_at":"2026-03-20T05:57:19Z","spotify_id":"6DA24ZSDdpMDVamckrY8lc","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d8b75795fc57850e5f5419ba5d62e40265fbaaaf02cfa54458fa78cbf550e88. 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/6DA24ZSDdpMDVamckrY8lc.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/6DA24ZSDdpMDVamckrY8lc.
{"copyright_id":"0xee39cf9ad8e743fc1820e8b80d1c2926a325fd0cc0597da6e709ccd4086d5dcc","isrc":"SEPQA0751552","name":"Dunka mig gul & blå","registered_at":"2026-01-28T21:38:18Z","spotify_id":"3Xh5EHnqbmOQUGZD5qAsl0","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee39cf9ad8e743fc1820e8b80d1c2926a325fd0cc0597da6e709ccd4086d5dcc. 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/3Xh5EHnqbmOQUGZD5qAsl0.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/3Xh5EHnqbmOQUGZD5qAsl0.
{"copyright_id":"0x92cfe0b18a580ab06b8267f6371bdb51909a50ee0f1fe57909e6f6c5458b169e","isrc":"SEVGT1202510","name":"Här Kommer Alla Känslorna","registered_at":"2026-06-07T05:47:26Z","spotify_id":"4qAM1oJnMKNKQFZEyxOQeQ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92cfe0b18a580ab06b8267f6371bdb51909a50ee0f1fe57909e6f6c5458b169e. 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/4qAM1oJnMKNKQFZEyxOQeQ.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/4qAM1oJnMKNKQFZEyxOQeQ.
Do You Believe In Me - Swedish R'N'B & Soul
Dunka mig gul & blå - DJ Sebastian Voght Remix