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 0x2385e028b84b36978b5afca39f63d47e9b6c2bc81d8847927dd5c0e3757fb499. 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/1a061381-894d-42af-b193-00bfc09a9ac3.json and https://artists.proofprofile.net/proofs/artist/1a061381-894d-42af-b193-00bfc09a9ac3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x173c5aa00675691e6cf58a46b823c209ac444c6210361636aae166b88f0766d7. 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/2q5E2qgXkrLg1KPiWXYoWl.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/2q5E2qgXkrLg1KPiWXYoWl.
Costa Rica (with Bas & JID feat. Guapdad 4000, Reese LAFLARE, Jace, Mez, Smokepurpp, Buddy & Ski Mask The Slump God)
{"copyright_id":"0x5ea74961f71b77d3167105314936fd239b82101c940404088015b983e6dbb563","isrc":"USUM71912266","name":"Costa Rica (with Bas & JID feat. Guapdad 4000, Reese LAFLARE, Jace, Mez, Smokepurpp, Buddy & Ski Mask The Slump God)","registered_at":"2026-06-01T13:50:49Z","spotify_id":"5WnfnSpuNEGXyEt78PBA6d","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ea74961f71b77d3167105314936fd239b82101c940404088015b983e6dbb563. 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/5WnfnSpuNEGXyEt78PBA6d.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/5WnfnSpuNEGXyEt78PBA6d.
Sleep Deprived (with Lute & Omen feat. Mez & DaVionne)
{"copyright_id":"0x9092414429fb4561e54980b7741042de27d0a61cf8e1ef6bec142d779708accf","isrc":"USUM71912967","name":"Sleep Deprived (with Lute & Omen feat. Mez & DaVionne)","registered_at":"2026-06-04T10:04:59Z","spotify_id":"6n3q5ybuUQFT97ddyuxsFh","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9092414429fb4561e54980b7741042de27d0a61cf8e1ef6bec142d779708accf. 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/6n3q5ybuUQFT97ddyuxsFh.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/6n3q5ybuUQFT97ddyuxsFh.
Revenge Of The Dreamers III: Director's Cut
{"copyright_id":"0x5ea74961f71b77d3167105314936fd239b82101c940404088015b983e6dbb563","isrc":"USUM71912266","name":"Costa Rica (with Bas & JID feat. Guapdad 4000, Reese LAFLARE, Jace, Mez, Smokepurpp, Buddy & Ski Mask The Slump God)","registered_at":"2026-06-01T13:50:49Z","spotify_id":"6stSUCyAY8mfBX00Nc5UuI","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ea74961f71b77d3167105314936fd239b82101c940404088015b983e6dbb563. 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/6stSUCyAY8mfBX00Nc5UuI.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/6stSUCyAY8mfBX00Nc5UuI.
{"copyright_id":"0x9092414429fb4561e54980b7741042de27d0a61cf8e1ef6bec142d779708accf","isrc":"USUM71912967","name":"Sleep Deprived (with Lute & Omen feat. Mez & DaVionne)","registered_at":"2026-06-04T10:04:59Z","spotify_id":"0qkiLDGEMIvrpSRIyAU6Xy","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9092414429fb4561e54980b7741042de27d0a61cf8e1ef6bec142d779708accf. 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/0qkiLDGEMIvrpSRIyAU6Xy.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/0qkiLDGEMIvrpSRIyAU6Xy.
New LA (feat. Anderson .Paak & King Mez)
{"copyright_id":"0x643a60ddf21c3ec20fb8cb81fcc860c94145372cb0b4b8b95d150f62bdea5678","isrc":"TCACX1760902","name":"New LA (feat. Anderson .Paak & King Mez)","registered_at":"2026-06-05T21:17:51Z","spotify_id":"2b9eFUxPgyBmshXyNV3UIw","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x643a60ddf21c3ec20fb8cb81fcc860c94145372cb0b4b8b95d150f62bdea5678. 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/2b9eFUxPgyBmshXyNV3UIw.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/2b9eFUxPgyBmshXyNV3UIw.
Passcode (with Ari Lennox feat. Buddy, Smino, Mez & Guapdad 4000)
{"copyright_id":"0x2d9ac5f479525a93ecc2eeecc3e5b17ab5ba7a261ba51364efee703983ecb711","isrc":"USUM72000117","name":"Passcode (with Ari Lennox feat. Buddy, Smino, Mez & Guapdad 4000)","registered_at":"2026-06-07T06:27:18Z","spotify_id":"18AFdCGyTiy6WtTDlx1HnN","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d9ac5f479525a93ecc2eeecc3e5b17ab5ba7a261ba51364efee703983ecb711. 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/18AFdCGyTiy6WtTDlx1HnN.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/18AFdCGyTiy6WtTDlx1HnN.
{"copyright_id":"0xf03aaf587e2092e03de05e5ca766d4d7ba5c41c2ae05173c5205a23d6160b44b","isrc":"USUM72302640","name":"Culture (with Mez, REASON, Symba & 8AE)","registered_at":"2026-06-07T23:43:41Z","spotify_id":"5vn6ZnfvDJQASz9karUAJZ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf03aaf587e2092e03de05e5ca766d4d7ba5c41c2ae05173c5205a23d6160b44b. 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/5vn6ZnfvDJQASz9karUAJZ.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/5vn6ZnfvDJQASz9karUAJZ.
Makin' Moves (feat. King Mez & Roc Marciano) - JR's Dirty Version
{"copyright_id":"0x5ea74961f71b77d3167105314936fd239b82101c940404088015b983e6dbb563","isrc":"USUM71912266","name":"Costa Rica (with Bas & JID feat. Guapdad 4000, Reese LAFLARE, Jace, Mez, Smokepurpp, Buddy & Ski Mask The Slump God)","registered_at":"2026-06-01T13:50:49Z","spotify_id":"5CTjX55yZHnoKAAKPsaKTG","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ea74961f71b77d3167105314936fd239b82101c940404088015b983e6dbb563. 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/5CTjX55yZHnoKAAKPsaKTG.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/5CTjX55yZHnoKAAKPsaKTG.
{"copyright_id":"0x224490e069a9d0106c0469c202f191e33b54717f7e34e4ffca177ee3dd22982b","isrc":"USUM72302536","name":"Culture (with Mez, REASON, Symba & 8AE)","registered_at":"2026-06-04T16:44:38Z","spotify_id":"6u7v3fDKPNJovpb6HiJKBn","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x224490e069a9d0106c0469c202f191e33b54717f7e34e4ffca177ee3dd22982b. 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/6u7v3fDKPNJovpb6HiJKBn.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/6u7v3fDKPNJovpb6HiJKBn.
{"copyright_id":"0xcd01af1a793d4ead75fce16d2498fec586a6bb65c1495a06df16fbf9bd911284","isrc":"QMTND1100154","name":"Lost My Way","registered_at":"2026-06-07T18:54:51Z","spotify_id":"5bppG2LuWktrnBBvXIJdw3","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd01af1a793d4ead75fce16d2498fec586a6bb65c1495a06df16fbf9bd911284. 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/5bppG2LuWktrnBBvXIJdw3.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/5bppG2LuWktrnBBvXIJdw3.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72b90bf3608c1234171d9d0a49900d16045896de828d4079a362765c275ec6ec. 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/1o9S5cM9CEWrh2ZVbvk5VS.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/1o9S5cM9CEWrh2ZVbvk5VS.
{"copyright_id":"0x17b0f3ea94743b329ac7dc10c42bb0d475f5c23051c8e3faa815f2d04caf2951","isrc":"USYBL1700574","name":"Passenger (feat. King Mez & Ray Wright)","registered_at":"2026-06-11T02:52:30Z","spotify_id":"5ZyYIWrXd1ht55Fr2lgO8R","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17b0f3ea94743b329ac7dc10c42bb0d475f5c23051c8e3faa815f2d04caf2951. 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/5ZyYIWrXd1ht55Fr2lgO8R.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/5ZyYIWrXd1ht55Fr2lgO8R.