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 0xf46868dfa2e2ba5d73bff71f2da8a637ba7c43344a1dbbe32461ccf65d71c73c. 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/e73798b9-6bf3-49d8-abf8-7615273bd95f.json and https://artists.proofprofile.net/proofs/artist/e73798b9-6bf3-49d8-abf8-7615273bd95f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xbb09c3ad7bf430d6e3ec214e2d1ae7282ce0cd5dec1da81525c234377fed8794","isrc":"TCADA1711152","name":"55 Bars","registered_at":"2026-06-23T11:51:41Z","spotify_id":"4HlKsWvD2EgF8vRsVHQNVG","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 0xbb09c3ad7bf430d6e3ec214e2d1ae7282ce0cd5dec1da81525c234377fed8794. 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/4HlKsWvD2EgF8vRsVHQNVG.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/4HlKsWvD2EgF8vRsVHQNVG.
{"copyright_id":"0x605c131096658e999df093cc552cba7d8f1700cc58d555b308d9b27c0b63a794","isrc":"TCADA1711205","name":"Shit Real (feat. Fredo Santana)","registered_at":"2026-06-23T11:52:43Z","spotify_id":"5fVBQVy4sKyUPISRyD63va","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x605c131096658e999df093cc552cba7d8f1700cc58d555b308d9b27c0b63a794. 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/5fVBQVy4sKyUPISRyD63va.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/5fVBQVy4sKyUPISRyD63va.
{"copyright_id":"0xacf79fbe3e9f2ed450c1132a7d29bf8618cd397eaae86cf9aaf86530a91fd13c","isrc":"TCADA1711306","name":"Brothers (feat. La Capone & Lil Durk)","registered_at":"2026-06-10T19:51:38Z","spotify_id":"59un0ZQhkuNHDFULw06eHW","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacf79fbe3e9f2ed450c1132a7d29bf8618cd397eaae86cf9aaf86530a91fd13c. 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/59un0ZQhkuNHDFULw06eHW.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/59un0ZQhkuNHDFULw06eHW.
{"copyright_id":"0xc4c0988cce791f87ca83b4bfd94549793ae41308a24ca099864f33b6dba170a4","isrc":"TCADA1711310","name":"Bail out (feat. Cdai)","registered_at":"2026-06-07T21:16:57Z","spotify_id":"7xra2feobZE2eVowDzgROA","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4c0988cce791f87ca83b4bfd94549793ae41308a24ca099864f33b6dba170a4. 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/7xra2feobZE2eVowDzgROA.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/7xra2feobZE2eVowDzgROA.
{"copyright_id":"0xf2b02ce1cde91b4a197d372078e77d347b2c4a80bd407c21fa6ed763e614fc37","isrc":"TCADA1711316","name":"Go Crazy (feat. Cdai)","registered_at":"2026-06-27T10:33:00Z","spotify_id":"0M9OHAnI8SVt4tJSnUnePA","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2b02ce1cde91b4a197d372078e77d347b2c4a80bd407c21fa6ed763e614fc37. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0M9OHAnI8SVt4tJSnUnePA.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/0M9OHAnI8SVt4tJSnUnePA.
Zeko Pack (feat. Bosstop, Lil Herb & D Rose)
{"copyright_id":"0xf80ebfa1fdda5f64622be44d5c80010109c1cb4de1255f59c90fe9ccc902d8b5","isrc":"TCADA1711320","name":"Zeko Pack (feat. Bosstop, Lil Herb & D Rose)","registered_at":"2026-06-19T15:09:02Z","spotify_id":"3VXmyj4D2yHO3TOOg3Hg3z","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf80ebfa1fdda5f64622be44d5c80010109c1cb4de1255f59c90fe9ccc902d8b5. 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/3VXmyj4D2yHO3TOOg3Hg3z.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/3VXmyj4D2yHO3TOOg3Hg3z.
{"copyright_id":"0x3ef0dc3297cf5ba8cfa72a9478ebccbdf469abc5f4440ff34556b0dd049b88cc","isrc":"TCADA1711352","name":"Og Bobby Johnson (feat. Edai & Cdai)","registered_at":"2026-06-21T07:31:14Z","spotify_id":"2pTGDn5WWN8KOPyhJz91lK","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ef0dc3297cf5ba8cfa72a9478ebccbdf469abc5f4440ff34556b0dd049b88cc. 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/2pTGDn5WWN8KOPyhJz91lK.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/2pTGDn5WWN8KOPyhJz91lK.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54378c4fc24cd2dd92faa64b888364c3ab1c638b3f59daf98b1d73b0f9bf1d16. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T20:43:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1I0JG6GnCC6WNx74aZXJ7V.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/1I0JG6GnCC6WNx74aZXJ7V.
{"copyright_id":"0x69422264cefce798214b156c5bfc1d004cb0a392aa0ea74df95f5f3f2f755bc8","isrc":"TCABY1412902","name":"Im Hot (feat. Lil Durk)","registered_at":"2026-06-18T15:53:29Z","spotify_id":"6TeWmnhgK17weiggwD6UIz","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69422264cefce798214b156c5bfc1d004cb0a392aa0ea74df95f5f3f2f755bc8. 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/6TeWmnhgK17weiggwD6UIz.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/6TeWmnhgK17weiggwD6UIz.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x943282468764b2bbb0f33a51f82f62aa6fb971729dd9c7f10063514b2329a0ef. 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/3TZq2TXxmsA79PuaEiZc25.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/3TZq2TXxmsA79PuaEiZc25.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a300a32313561b4d39f63f072cb107289ca4d37532d3f9b8af7d689d286bb45. 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/5bmdd7aB4ip81f6RKETceZ.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/5bmdd7aB4ip81f6RKETceZ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67a8142521058b10a10d9e4cf3e956c3509e7e53366025fe7e013061e59a15ac. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1TqX09stqAYV0mFnnTqi7L.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/1TqX09stqAYV0mFnnTqi7L.
{"copyright_id":"0xe95071c3e8120544dc2a00b048876b3e7ab5ecd925f65705e67812cca9668da0","isrc":"TCABY1412940","name":"Go Bobby Johnson (feat. Edai & Cdai)","registered_at":"2026-06-19T10:58:06Z","spotify_id":"7eOvvdXk3rMOtHe43KEzmZ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe95071c3e8120544dc2a00b048876b3e7ab5ecd925f65705e67812cca9668da0. 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/7eOvvdXk3rMOtHe43KEzmZ.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/7eOvvdXk3rMOtHe43KEzmZ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93e4d7d20c521cb7a25736868e5c91730398cda2a097a9a678124531c881f838. 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/7mIu97fThHd4C914COAzPq.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/7mIu97fThHd4C914COAzPq.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x271df884dc214797114a09960b786565d672f376f4dd65e2ad939da57d087c71. 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/1qeIILu8KGl8CI9vEFL4tw.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/1qeIILu8KGl8CI9vEFL4tw.
We Chiraqi Savages / Chicago Homicide 79th & Clyde (feat. Rondonumbanine & Lil Durk)
Better Him Than Me (feat. L'a Capone & Rondonumbanine)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35c728afe837caff9bdd30a2edb9edf986b014a35f310856056f6c12227db8a1. 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/4BdoDT5HjQrj3tWKS4QPH8.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/4BdoDT5HjQrj3tWKS4QPH8.