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 0xb113a3d2ce24d88433f8fa4c6527615f8eb29dec7fe5a512c2cd97d254f0a441. 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/b83cf43a-d477-42aa-b06b-b4ea5c2ad66a.json and https://artists.proofprofile.net/proofs/artist/b83cf43a-d477-42aa-b06b-b4ea5c2ad66a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x8f0e394e86243c0bacca9c50db5c33560e2fe25267dad897d0403ed8f66521a9","isrc":"USWB12401054","name":"Holy Ghost - Martin Solveig Remix","registered_at":"2026-06-05T04:52:06Z","spotify_id":"1mgmfgk7C2MufQ1EW40fEX","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 0x8f0e394e86243c0bacca9c50db5c33560e2fe25267dad897d0403ed8f66521a9. 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/1mgmfgk7C2MufQ1EW40fEX.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/1mgmfgk7C2MufQ1EW40fEX.
Holy Ghost - Martin Solveig Extended Remix
Holy Ghost (Martin Solveig Extended Remix)
{"copyright_id":"0xd56debeab6b5a93546875ed5148427ba57907c2aba2b15cc3114640dc8a46b40","isrc":"USWB12400850","name":"Holy Ghost - Martin Solveig Extended Remix","registered_at":"2026-06-07T10:59:35Z","spotify_id":"74zKKt6HJ7eXd28ez65XWN","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd56debeab6b5a93546875ed5148427ba57907c2aba2b15cc3114640dc8a46b40. 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/74zKKt6HJ7eXd28ez65XWN.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/74zKKt6HJ7eXd28ez65XWN.
TECHNICIAN (feat. Blaqbonez & Lekaa Beats)
{"copyright_id":"0xbf8047e375073a85997a16318709eaa703ca2908155dea853af65cef78c77c07","isrc":"USUM72403829","name":"TECHNICIAN (feat. Blaqbonez & Lekaa Beats)","registered_at":"2026-06-04T06:18:30Z","spotify_id":"60qIa2znv2BICoDyJS8rNv","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf8047e375073a85997a16318709eaa703ca2908155dea853af65cef78c77c07. 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/60qIa2znv2BICoDyJS8rNv.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/60qIa2znv2BICoDyJS8rNv.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bd61573a452ea2649b917956317794f9296fa2567beeb67d2aed3e1c4310b50. 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/6h642k9ziWJXyrz4RCaTsI.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/6h642k9ziWJXyrz4RCaTsI.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30c9c27a2fc727c05b51b0f5173c9bd1d5bc6c438063a3169bff7a6ef9fd3780. 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/6vtXGeOQ7fqx9j9wlSk1Z5.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/6vtXGeOQ7fqx9j9wlSk1Z5.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28369a5ac3912b158cebdf4de25121a4040d95eb853d93ddf7303ac23d5f6418. 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/6laQhvFYyIgZG21a6zx0HW.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/6laQhvFYyIgZG21a6zx0HW.
{"copyright_id":"0xaf4bec29a628fbca0052fc7336bd56ae462bcd40d99f42d73f572f2f0726faef","isrc":"QMDA62427188","name":"Ngingo Wakho","registered_at":"2026-06-06T01:06:12Z","spotify_id":"7EFQmFPC6lq0jnJaj1QVmX","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf4bec29a628fbca0052fc7336bd56ae462bcd40d99f42d73f572f2f0726faef. 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/7EFQmFPC6lq0jnJaj1QVmX.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/7EFQmFPC6lq0jnJaj1QVmX.
{"copyright_id":"0x17ce4fd35b7ddbcc155bd51a10700bf63602eebdeadb69676efeced983844b55","isrc":"QMDA62427189","name":"Qweller's Prayer","registered_at":"2026-06-06T01:41:09Z","spotify_id":"5u2M4JqOPdhZVhU4nnJrgP","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17ce4fd35b7ddbcc155bd51a10700bf63602eebdeadb69676efeced983844b55. 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/5u2M4JqOPdhZVhU4nnJrgP.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/5u2M4JqOPdhZVhU4nnJrgP.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef7a2031bb3137c79b9ba56b1f221a3916232adf55940b114d72fc4d6b665a63. 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/2R6eV26pSgLz2yV5dfgzLL.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/2R6eV26pSgLz2yV5dfgzLL.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bd61573a452ea2649b917956317794f9296fa2567beeb67d2aed3e1c4310b50. 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/4sumIfJ81TnWglTrUl7YqG.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/4sumIfJ81TnWglTrUl7YqG.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30c9c27a2fc727c05b51b0f5173c9bd1d5bc6c438063a3169bff7a6ef9fd3780. 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/5SMxQUm3FwxmM3vHYgxqdu.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/5SMxQUm3FwxmM3vHYgxqdu.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28369a5ac3912b158cebdf4de25121a4040d95eb853d93ddf7303ac23d5f6418. 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/4lBIGeAKBec1bDeEMkx4bz.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/4lBIGeAKBec1bDeEMkx4bz.
{"copyright_id":"0xaf4bec29a628fbca0052fc7336bd56ae462bcd40d99f42d73f572f2f0726faef","isrc":"QMDA62427188","name":"Ngingo Wakho","registered_at":"2026-06-06T01:06:12Z","spotify_id":"5lMlqbZy3LPEkTSD3kazrO","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf4bec29a628fbca0052fc7336bd56ae462bcd40d99f42d73f572f2f0726faef. 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/5lMlqbZy3LPEkTSD3kazrO.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/5lMlqbZy3LPEkTSD3kazrO.
{"copyright_id":"0x17ce4fd35b7ddbcc155bd51a10700bf63602eebdeadb69676efeced983844b55","isrc":"QMDA62427189","name":"Qweller's Prayer","registered_at":"2026-06-06T01:41:09Z","spotify_id":"2hkfnNC3rN9DQPpCOPkep4","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17ce4fd35b7ddbcc155bd51a10700bf63602eebdeadb69676efeced983844b55. 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/2hkfnNC3rN9DQPpCOPkep4.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/2hkfnNC3rN9DQPpCOPkep4.
{"copyright_id":"0xdca9c832bbe0ecd8df77fae384028d0b9fe9d7a5fbed58976f66b5b8a7022b7d","isrc":"QMDA72413287","name":"One Time","registered_at":"2026-06-05T08:09:14Z","spotify_id":"5u6yrgzMJRdM33dwdF6jNb","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdca9c832bbe0ecd8df77fae384028d0b9fe9d7a5fbed58976f66b5b8a7022b7d. 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/5u6yrgzMJRdM33dwdF6jNb.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/5u6yrgzMJRdM33dwdF6jNb.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x678974ad5a5c3fcf539231391d7c6490ae74ace4006bdcd844c8d4f2f3caddb1. 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/1LD6L2gNe08AwW0RcKKXlN.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/1LD6L2gNe08AwW0RcKKXlN.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46b02286511e0984948a6b3a589b718273bf8f13490a0f588e4db61a55e0b8ac. 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/3ht3FTQAjZStHhkjigoGru.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/3ht3FTQAjZStHhkjigoGru.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bcc344e6f3d5de99f69d6b3903ab9d68646810bd140424346cbdb51637e55ff. 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/3fumR5gMaaBKAJZ5XU5u5T.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/3fumR5gMaaBKAJZ5XU5u5T.