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 0xca7f7f786e5846c8ceb153dd97faed755c53e869407a21cd883760ee33c681d8. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3cf7e307-2028-4b26-affe-90a138af1f1c.json and https://artists.proofprofile.net/proofs/artist/3cf7e307-2028-4b26-affe-90a138af1f1c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
No Exit (The Amazing Digital Circus Song)
{"copyright_id":"0xfa28df69bb1afdb9453224b927c104d1167d700af155ba490a3f92ec84e5d237","isrc":"QZDA42498639","name":"OBEY (The Amazing Digital Circus Song)","registered_at":"2026-06-07T01:58:35Z","spotify_id":"0fUOq7xSbQ5myDBZIJNafT","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 0xfa28df69bb1afdb9453224b927c104d1167d700af155ba490a3f92ec84e5d237. 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/0fUOq7xSbQ5myDBZIJNafT.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/0fUOq7xSbQ5myDBZIJNafT.
{"copyright_id":"0xd5f8be5af42f7c70eaebc9220c0b15e8bb8b0e5ec581c288e01a4484b480eb25","isrc":"QZHN62463696","name":"Everlasting Fun (KinitoPET Song)","registered_at":"2026-06-04T12:39:29Z","spotify_id":"0uJsLUiCukISSfdmL8iKWI","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5f8be5af42f7c70eaebc9220c0b15e8bb8b0e5ec581c288e01a4484b480eb25. 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/0uJsLUiCukISSfdmL8iKWI.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/0uJsLUiCukISSfdmL8iKWI.
"KINGDOM COME" | The Amazing Digital Chess Song
{"copyright_id":"0x400f0ef26f71a7a3fe25f8a94041294ffa75549d209de8da981f66c92e820cab","isrc":"QZK6F2476763","name":"\"KINGDOM COME\" | The Amazing Digital Chess Song","registered_at":"2026-06-06T05:25:40Z","spotify_id":"4irnx66Vsze6do22EyefMe","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x400f0ef26f71a7a3fe25f8a94041294ffa75549d209de8da981f66c92e820cab. 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/4irnx66Vsze6do22EyefMe.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/4irnx66Vsze6do22EyefMe.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aaa9cf74e636fa11ae6ab00572067af67a87e5afe76546af67a36ebfde0145f. 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/2n5iXgE5660bBBniet2Arz.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/2n5iXgE5660bBBniet2Arz.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ca7314946471956ee218434126aadb81f0b2c46c89043bdc5b31182e0ae9636. 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/08LhcwvMGBOG20fnaZ20Ec.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/08LhcwvMGBOG20fnaZ20Ec.
King Of All Seeing Eyes (The Amazing Digital Circus Song)
{"copyright_id":"0x857693a1d4e49d936ae07ec0cb36550cd9d455b06735bc3609ffd82f593daa3b","isrc":"QZK6G2438179","name":"King Of All Seeing Eyes (The Amazing Digital Circus Song)","registered_at":"2026-06-22T05:34:16Z","spotify_id":"60WbhOh00GHj5oVKhOKIr8","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x857693a1d4e49d936ae07ec0cb36550cd9d455b06735bc3609ffd82f593daa3b. 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/60WbhOh00GHj5oVKhOKIr8.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/60WbhOh00GHj5oVKhOKIr8.
We're Gonna Make It (Content Warning Song)
{"copyright_id":"0x22fe8dd548c1ba801a3609c5cfdd0db8f20af8f0ac481978c55f4a6595037882","isrc":"QZK6L2403251","name":"We're Gonna Make It (Content Warning Song)","registered_at":"2026-06-09T19:09:42Z","spotify_id":"4RLQzbWzAZtlsYqCbqtFyc","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22fe8dd548c1ba801a3609c5cfdd0db8f20af8f0ac481978c55f4a6595037882. 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/4RLQzbWzAZtlsYqCbqtFyc.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/4RLQzbWzAZtlsYqCbqtFyc.
We're Gonna Make It - Instrumental Version
{"copyright_id":"0x3775bde77c6cb5fe786263953b93ecd3f5b467602badf760f10530531d159aef","isrc":"QZHN92409208","name":"AGE OF STEREO (Alastor)","registered_at":"2026-06-04T11:59:12Z","spotify_id":"2nvYDRnxxJcVg9aLhZl4LZ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3775bde77c6cb5fe786263953b93ecd3f5b467602badf760f10530531d159aef. 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/2nvYDRnxxJcVg9aLhZl4LZ.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/2nvYDRnxxJcVg9aLhZl4LZ.
{"copyright_id":"0xc04aa441ca9f07fbf02affc88c045866d80162571f747c4372d4b2cf36b7fcb8","isrc":"QZTBD2316119","name":"Welcome To The Circus!","registered_at":"2026-06-10T19:34:42Z","spotify_id":"2RXQtRj3Y4bkWxTR7GQfEs","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc04aa441ca9f07fbf02affc88c045866d80162571f747c4372d4b2cf36b7fcb8. 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/2RXQtRj3Y4bkWxTR7GQfEs.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/2RXQtRj3Y4bkWxTR7GQfEs.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f416e3be65163357c58c68f7905120f0b160bfc30e42f9560c2c93ccc3fb9d8. 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/5hVTCFrS5yS6U982lBLN4P.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/5hVTCFrS5yS6U982lBLN4P.
ABSOLUTE (Murder Drones Song) - Instrumental
{"copyright_id":"0x57de373439c241a4499627eddd464e1cedbbe99cbc25de3dfe0c4238b738a747","isrc":"QZTB92404550","name":"ABSOLUTE (Murder Drones Song) - Instrumental","registered_at":"2026-06-10T05:34:27Z","spotify_id":"2vVLHpLyvfD8QxJeEGntx4","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57de373439c241a4499627eddd464e1cedbbe99cbc25de3dfe0c4238b738a747. 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/2vVLHpLyvfD8QxJeEGntx4.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/2vVLHpLyvfD8QxJeEGntx4.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd60c9f08fcb8a1443d603772d4a88d41272d951a3b5a5920a9fe3392af44ed9b. 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/6cl4A8HDB7iIwJmtoNtrqA.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/6cl4A8HDB7iIwJmtoNtrqA.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fe368a0daf0e02c31485e7e9f7ff197c3aa668325a3ba5330399bf68cedb3c9. 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/14rvsYU0z3tm9Kyji3upXm.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/14rvsYU0z3tm9Kyji3upXm.
Koopa, The Monster ("Koopa" from "Super Mario World 2: Yoshi's Island")
This Is Halloween (from "Kingdom Hearts")
XIII Cheers for Sweet Revenge: Kingdom Hearts Goes Emo
Flowers of Antimony (The Explodatorium) (from "Shovel Knight")
Hail to the Knight: A Metalcore Tribute to Shovel Knight
Strike the Earth! (Plains of Passage) (from "Shovel Knight")