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 0xbb535be874d18d5119a797e79d56fa7b2a3f19b2ca73c909c9272fcadcaedda9. 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/340e2362-4d2e-4517-b501-85508ae9cdca.json and https://artists.proofprofile.net/proofs/artist/340e2362-4d2e-4517-b501-85508ae9cdca.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x8a53eb4bdcd1a4e4b852b4f5c35ea6aec2c9e7d0387ee0aff8e8d826a3721640","isrc":"TCAGU2313652","name":"Supremacy 2023","registered_at":"2026-06-21T12:23:34Z","spotify_id":"7qb0ZInFtjKaflJLspH4qc","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 0x8a53eb4bdcd1a4e4b852b4f5c35ea6aec2c9e7d0387ee0aff8e8d826a3721640. 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/7qb0ZInFtjKaflJLspH4qc.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/7qb0ZInFtjKaflJLspH4qc.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07cc6652d4a9384702fd119f1a87319e7f1a3c57785e0c5a690db352a2566611. 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/55Y8UXtT1y2MSNvK51mg4P.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/55Y8UXtT1y2MSNvK51mg4P.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x631707fd6dde860badbc11c77376d8fe40174fee88df65e391468ba0292a349f. 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/39H0GWQyqeaAoKlmE7BIKB.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/39H0GWQyqeaAoKlmE7BIKB.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fd8c789ffb08da320e1e77826b5e6a40651cb0a480474d980b4bad1943e1fa0. 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/5qV2Uu7Y8awDa8K44c7My2.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/5qV2Uu7Y8awDa8K44c7My2.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6342b887ce24e371afa5f9f7c604b62976419c9de701175ecbf90d8335665cc5. 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/4bAH2Z4G57Xq1ImCPZzlfO.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/4bAH2Z4G57Xq1ImCPZzlfO.
{"copyright_id":"0xc731c516905deeb88e66df8a953179a4afd6808ded9a111cdcca2beda491f5ee","isrc":"TCAEL1931609","name":"Amsterdam 2020","registered_at":"2026-06-09T21:46:01Z","spotify_id":"3Gkxx91gqRfuLzDFJvFafW","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc731c516905deeb88e66df8a953179a4afd6808ded9a111cdcca2beda491f5ee. 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/3Gkxx91gqRfuLzDFJvFafW.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/3Gkxx91gqRfuLzDFJvFafW.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9d798027827f95ddf9d34a0d4b8656d63d4b1c3110f0d3a02ec1697e2240e6a. 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/4jjr41XLS4E7chn7XdQnjV.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/4jjr41XLS4E7chn7XdQnjV.
{"copyright_id":"0x7b624735bcf0fcf0dbc2f51d56b82317f38dc7ab2c6eefb6f6d9eb8fce9f13a6","isrc":"TCAEF1974917","name":"5th Avenue 2020 (Alle Gutta)","registered_at":"2026-06-26T04:14:50Z","spotify_id":"0pplbTrcC6r9tvX4kFWsbI","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b624735bcf0fcf0dbc2f51d56b82317f38dc7ab2c6eefb6f6d9eb8fce9f13a6. 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/0pplbTrcC6r9tvX4kFWsbI.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/0pplbTrcC6r9tvX4kFWsbI.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca19cc24d3a0e74b70794c3b7bc5c9ce84e587cfaa88c48537d03fa3696c49ff. 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/6cMvCBIK0qmXJHv9VtZhvw.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/6cMvCBIK0qmXJHv9VtZhvw.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc02cd361e34a389d5041b4f5ad4778510bd5d6848cf3af198c36f744fb9edc21. 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/7emyuSUJZ9XjFd3sKbGQwD.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/7emyuSUJZ9XjFd3sKbGQwD.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69318c357830d6af75cf473e7f450b70abc3359a5badc62ea40de9931cda5fc3. 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/2A8Uk09cRRxOkpHX4fNrsC.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/2A8Uk09cRRxOkpHX4fNrsC.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe83c3cb2073d4a59db33bd6ae9f48c00aa9b702e4252836c6085120267710d4a. 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/1xIwJsmbZX94kQES0Hcc0z.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/1xIwJsmbZX94kQES0Hcc0z.
{"copyright_id":"0x259d507da63b2fd8a10ee43b39aef54d6b6c3e4226cca0cfa1b08984f868f88f","isrc":"TCAEC1981324","name":"Pandora 2019","registered_at":"2026-06-08T23:58:00Z","spotify_id":"6bBmtZbVHCkumE9rf0EEKk","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x259d507da63b2fd8a10ee43b39aef54d6b6c3e4226cca0cfa1b08984f868f88f. 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/6bBmtZbVHCkumE9rf0EEKk.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/6bBmtZbVHCkumE9rf0EEKk.
{"copyright_id":"0x294bbe402d02e8051a35deb9d6fb4e8818e8e2bfc4b7cb2c517690de0a71b786","isrc":"TCAEC1981277","name":"Buckshot 2020","registered_at":"2026-06-19T19:07:32Z","spotify_id":"7FktjseZ6zwkGdOjtRlIWj","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x294bbe402d02e8051a35deb9d6fb4e8818e8e2bfc4b7cb2c517690de0a71b786. 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/7FktjseZ6zwkGdOjtRlIWj.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/7FktjseZ6zwkGdOjtRlIWj.
{"copyright_id":"0x708cededf0018a0edbd2b553605f96642fb9d93dfc747d3cc1b806bd6fa9aebe","isrc":"TCAEC1916289","name":"Helvete 2019","registered_at":"2026-06-07T04:06:08Z","spotify_id":"3AGMo4jFOeKt46QiPLbzZc","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x708cededf0018a0edbd2b553605f96642fb9d93dfc747d3cc1b806bd6fa9aebe. 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/3AGMo4jFOeKt46QiPLbzZc.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/3AGMo4jFOeKt46QiPLbzZc.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x986ae15ab28d639b788d8a3192cd4af9e13a407b45a8c83b6c6e9f827a825ab0. 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/6nW3Y0RnKquUWyB0uljAaw.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/6nW3Y0RnKquUWyB0uljAaw.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50c15f0401ac12298d38d2aaac5f789913dbb5eb01d90066bb07a41b3df8272e. 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/1Aon2mG0sBL7657JtJFFc2.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/1Aon2mG0sBL7657JtJFFc2.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9250dbb1066770512b59b9049464231280fbb28a8a3811f6d765a33b8d5b6d8f. 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/1cyzmHzQjoDWwNjPahdLmv.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/1cyzmHzQjoDWwNjPahdLmv.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x417c509cdf2fabdb0f629ece1b9694650429c728e9f50aeb87f92de574b8cc16. 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/75opaljgk5u0lCV3moG6se.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/75opaljgk5u0lCV3moG6se.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81ca59b9758883bcc644737633f5e2f8a7f5fcb9b30ffee61299dde615a23cef. 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/3kdJFpvGJ3WYY9331FrIJa.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/3kdJFpvGJ3WYY9331FrIJa.
{"copyright_id":"0xb575b2a2cb8b8901438baa8a014bb57df4f14ca081764fa2b96cb96ab5a80bbd","isrc":"TCADW1835029","name":"Greased Lightning 2019","registered_at":"2026-06-19T19:08:43Z","spotify_id":"7ydT6Cu0ufIReRr7BIY1vH","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb575b2a2cb8b8901438baa8a014bb57df4f14ca081764fa2b96cb96ab5a80bbd. 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/7ydT6Cu0ufIReRr7BIY1vH.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/7ydT6Cu0ufIReRr7BIY1vH.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc26f218a589eec075c0677658692583d6b7c48852cf123333eda4c1402e1c870. 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/7JUVYPAQCfwbe6sc5H4Z2X.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/7JUVYPAQCfwbe6sc5H4Z2X.
{"copyright_id":"0xd1be67dff4b53875377775dff285594ddbe7a659589fafd7affc44fd0326cb3e","isrc":"TCADP1856256","name":"Hanazake 2018","registered_at":"2026-06-21T12:23:54Z","spotify_id":"2pd2wtUXmqCE1iSEirUDiW","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1be67dff4b53875377775dff285594ddbe7a659589fafd7affc44fd0326cb3e. 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/2pd2wtUXmqCE1iSEirUDiW.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/2pd2wtUXmqCE1iSEirUDiW.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c24e2a0b5f530afd5c3719bc21ffc6be0731f2b8261e9f0a61588d30aaca386. 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/33M7gXSomcofg7f5zLV7ZW.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/33M7gXSomcofg7f5zLV7ZW.
{"copyright_id":"0x62c61ccfedb00212214c1d16bff6aab3fa51ae89ab588b5f3027acff2aecfc9a","isrc":"TCADN1864839","name":"Glam 2018","registered_at":"2026-06-23T18:33:40Z","spotify_id":"5oLgFKITo3R1p7K8w7skKZ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62c61ccfedb00212214c1d16bff6aab3fa51ae89ab588b5f3027acff2aecfc9a. 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/5oLgFKITo3R1p7K8w7skKZ.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/5oLgFKITo3R1p7K8w7skKZ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78636d25524964a24aa3bdc0efb5b8d554869fc7f3ff32662e9178f50a8d7ba9. 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/7aE4RqLgrxeJNeW6V41LES.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/7aE4RqLgrxeJNeW6V41LES.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90826f385c4d44c0c5c7b1b67380638af10dc3d9e34e338539c52f2f1574e119. 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/6XJOGa2abma9PRcBkvs74E.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/6XJOGa2abma9PRcBkvs74E.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27cdb4e6dbc8f64409f39a29f8b9457db3e670f2e5fb9870a57343e8fa48da2f. 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/2Ciw1AbTmkFr5thXTZ1sa0.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/2Ciw1AbTmkFr5thXTZ1sa0.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7a2e2657e1545b5ed7507744ba6206dcc8038182e82650600b32686317dcd4a. 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/7nBcSUpKskrCGTczVFqZHX.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/7nBcSUpKskrCGTczVFqZHX.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb0d6ca25eb700a48a5046c01367a7c7207064f91d052e55066988d5c368601f. 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/4V8wVYkU7Cz76c9hDvZAn6.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/4V8wVYkU7Cz76c9hDvZAn6.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8fdf00f3646032b9a0593727800c74c8d1f93667f5f21180ef314d776dc6ce8. 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/3ZQl2RNl0IEVBJZ24q89XG.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/3ZQl2RNl0IEVBJZ24q89XG.
{"copyright_id":"0xcc05bfff0d496a67daa392814008cdd220783f07165cdcbb8e7f516735dc6b78","isrc":"TCADH1758342","name":"Hamilton House","registered_at":"2026-06-25T08:57:32Z","spotify_id":"5EqRe0DqgTUnTQBDn6wBZY","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc05bfff0d496a67daa392814008cdd220783f07165cdcbb8e7f516735dc6b78. 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/5EqRe0DqgTUnTQBDn6wBZY.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/5EqRe0DqgTUnTQBDn6wBZY.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1779084a25df724cb606e79138d9217277dd2a187a3d992d7b7a0a96bb63eecf. 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/4tf8RkNBFtwJmAa3UCPQPH.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/4tf8RkNBFtwJmAa3UCPQPH.
{"copyright_id":"0xda5217c7dab7986e61f4714ef493f4057cceb2afdc03e063c27e1504e18628ea","isrc":"TCADA1768135","name":"Interception 2017","registered_at":"2026-06-18T07:26:56Z","spotify_id":"2QTEB9si9fZExkkoymMeZV","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda5217c7dab7986e61f4714ef493f4057cceb2afdc03e063c27e1504e18628ea. 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/2QTEB9si9fZExkkoymMeZV.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/2QTEB9si9fZExkkoymMeZV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x641d3b76863b924bf99c26ca9d0bcbcf463672f07a05bf69aeb9027a652a9350. 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/74ak5c3OqvJl012AcN99d1.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/74ak5c3OqvJl012AcN99d1.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ec3c5507583883172cae5ff759c16dfcd6a875376f529ce143bac04531ac09c. 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/3KoCfbkBMRRtBaikLMhBll.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/3KoCfbkBMRRtBaikLMhBll.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10ce54942886357efc0cc8cf3bad2c43a637e75ffcf4a72c544370cba125624f. 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/3y3bb6vLgg1WG3d7JCiyaX.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/3y3bb6vLgg1WG3d7JCiyaX.