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 0xc22503001c30ca3dc81de932f8f6ac2b0b4cdce89d4c017dba56d41e90a88632. 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/b99f5ff1-0aa1-4a8a-9b27-bcae4f4cf8ab.json and https://artists.proofprofile.net/proofs/artist/b99f5ff1-0aa1-4a8a-9b27-bcae4f4cf8ab.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 0x165d688f4a361ca159115eeed700817e251efbe477f7bbae68e3c80378c010e7. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3lqdu3Co4aLdZt0VEE38fY.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/3lqdu3Co4aLdZt0VEE38fY.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb49486a496a2acc575a7a2e7719319ebe2cfd86ca9e662d811b05cf7ba537019. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2ttgbQAK865kyPOvezDv1J.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/2ttgbQAK865kyPOvezDv1J.
Glass Ceiling (feat. Macklemore, Sir Mix-A-Lot & Prometheus Brown)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b9b81dc6971bcb6657083e75efff138867acda1c75ac5624878013730db5cd7. 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/0NHdCbteSNvftNq5rez6FP.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/0NHdCbteSNvftNq5rez6FP.
{"copyright_id":"0x9d738d46c8d1d64b25aa12562bb4253399719d81bcb36b314b434d2d273bd5ba","isrc":"USSM11906252","name":"Dropped Babies","registered_at":"2026-06-09T16:32:09Z","spotify_id":"6FJg1rvmMqemBMCtOqUxkA","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d738d46c8d1d64b25aa12562bb4253399719d81bcb36b314b434d2d273bd5ba. 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/6FJg1rvmMqemBMCtOqUxkA.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/6FJg1rvmMqemBMCtOqUxkA.
{"copyright_id":"0x174a0fee5dd3c7bdc1f7598481dc501a21523f80a966cea2c7c9670af4e82c3b","isrc":"USSM11906253","name":"WE GOOD! (feat. ADÉ)","registered_at":"2026-06-20T23:04:00Z","spotify_id":"7rvCmjCjjpEOavJoaP9OAS","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x174a0fee5dd3c7bdc1f7598481dc501a21523f80a966cea2c7c9670af4e82c3b. 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/7rvCmjCjjpEOavJoaP9OAS.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/7rvCmjCjjpEOavJoaP9OAS.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb49486a496a2acc575a7a2e7719319ebe2cfd86ca9e662d811b05cf7ba537019. 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/2ukuNgt1qbb5PcUDq0HnUv.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/2ukuNgt1qbb5PcUDq0HnUv.
{"copyright_id":"0x6af27c29fe27d61ebcc48fa61bd5c9f7f4b25f4e29df11e0ecbc4a6ab9546d74","isrc":"USSM11906254","name":"The Move (feat. Parisalexa)","registered_at":"2026-06-21T18:06:19Z","spotify_id":"0GSb2MSUEY06fgQ25VwnXa","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6af27c29fe27d61ebcc48fa61bd5c9f7f4b25f4e29df11e0ecbc4a6ab9546d74. 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/0GSb2MSUEY06fgQ25VwnXa.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/0GSb2MSUEY06fgQ25VwnXa.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2044cefad61e6e303515d95e8e6688ec1e01b8697731846e164432dddac04833. 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/013wtQk69z9zXitOZgEKIB.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/013wtQk69z9zXitOZgEKIB.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfc883088660010621237ff7d3d463f01b26ad4308df4f592d34b176974cd110. 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/0H5HmeqsxdJ3jaK1Ng4C2c.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/0H5HmeqsxdJ3jaK1Ng4C2c.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe6458060c408d5e3117bea486839356b8598fd03a4f6cccf74d203c67fac76e. 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/5vaojrT58Wp994XhzLyXpI.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/5vaojrT58Wp994XhzLyXpI.
{"copyright_id":"0x49e490883af8a31b88f158fceacb20d75735fe386709819ae171f46bd9bee400","isrc":"USSM11906257","name":"Glass Ceiling (feat. Macklemore, Sir Mix-A-Lot & Prometheus Brown)","registered_at":"2026-06-10T16:04:40Z","spotify_id":"0ynWDtxuk7giDTbois5P1D","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49e490883af8a31b88f158fceacb20d75735fe386709819ae171f46bd9bee400. 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/0ynWDtxuk7giDTbois5P1D.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/0ynWDtxuk7giDTbois5P1D.
{"copyright_id":"0xb425260cb368219eb0c5e0f4e0aedf1d75baf04c513a4de0716c05bdd1eeeb8e","isrc":"USSM11906259","name":"Pray for Me","registered_at":"2026-06-20T04:01:20Z","spotify_id":"6lpsUiTuqMQqENMD9tsk6s","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb425260cb368219eb0c5e0f4e0aedf1d75baf04c513a4de0716c05bdd1eeeb8e. 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/6lpsUiTuqMQqENMD9tsk6s.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/6lpsUiTuqMQqENMD9tsk6s.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95f34d44709dd0fb4672e99955954360019dd7d0244ee714aec7d753fa351247. 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/4E7XHq03UWpZnRKiJ5gbvv.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/4E7XHq03UWpZnRKiJ5gbvv.
{"copyright_id":"0x9f4d4774ca90cad11f4c5b86532d6b31b162d29d4d0642b7ee3bcbb441f5aa6d","isrc":"USSM11906261","name":"Don't Run (feat. A-Trak)","registered_at":"2026-06-24T05:33:04Z","spotify_id":"4ojcvA2FGzjc8o9Ir8k2OR","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f4d4774ca90cad11f4c5b86532d6b31b162d29d4d0642b7ee3bcbb441f5aa6d. 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/4ojcvA2FGzjc8o9Ir8k2OR.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/4ojcvA2FGzjc8o9Ir8k2OR.
{"copyright_id":"0x5505b7420a2af3009f7ae765ffcb96e662ef1088453ee1b268b1e4e9db0b9677","isrc":"USSM11906262","name":"Enough Today (feat. Sylvan LaCue)","registered_at":"2026-06-23T00:31:16Z","spotify_id":"7ilpVNSkFeHSq5ygl74AmU","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5505b7420a2af3009f7ae765ffcb96e662ef1088453ee1b268b1e4e9db0b9677. 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/7ilpVNSkFeHSq5ygl74AmU.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/7ilpVNSkFeHSq5ygl74AmU.
{"copyright_id":"0xb9440398dfc5e6864a94b801aaca151754c5724e6a5e5a9cc17c5421a89690a5","isrc":"USSM11906263","name":"Reckless Endangerment","registered_at":"2026-06-10T16:05:49Z","spotify_id":"3pNlCvzGyFlfYghGhdVQE9","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9440398dfc5e6864a94b801aaca151754c5724e6a5e5a9cc17c5421a89690a5. 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/3pNlCvzGyFlfYghGhdVQE9.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/3pNlCvzGyFlfYghGhdVQE9.
Parked Cars (feat. KYLE & Kota the Friend)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fa87aeaca48ca8767ad814ff275f13541992a494910faec5988e8a5f9c8f4cb. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0mS6SwmBI4m45y3pWrQyr3.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/0mS6SwmBI4m45y3pWrQyr3.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62c5d7db8e199c511f8650f90778b175102a72199fb5b541e7dbda0e5cd8cb09. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3Q1cMVg8Bzpd0MAX8rO2ba.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/3Q1cMVg8Bzpd0MAX8rO2ba.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf0269183b826c127a2442b5de8accf2dbdfb157b07448c1a259ba5b8f991cea. 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/1uuJEGhJGvoESZcP9P00Zk.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/1uuJEGhJGvoESZcP9P00Zk.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b0c6e01cc75a6a4e0dd184343b72aa4bbdfb4f415c6b2f812f206d2b82243dd. 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/5igXFQgpKTH0MJWZfEtXKu.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/5igXFQgpKTH0MJWZfEtXKu.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a7258a121d9035536474aaa35517cc8dddfca645f77ad89c786b2393eae5081. 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/7LtZmVyaEt07cln17YfyXe.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/7LtZmVyaEt07cln17YfyXe.
Corner Store (feat. Dave B & Travis Thompson)
{"copyright_id":"0x09f856d0dd2f7c4296554df453c1ea6e96bdbf39bac97abb8b3d1a804ad1a334","isrc":"QZ8TY1700023","name":"Corner Store (feat. Dave B & Travis Thompson)","registered_at":"2026-06-04T08:39:41Z","spotify_id":"4m4aiyWCBH011DhxQeoWt1","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09f856d0dd2f7c4296554df453c1ea6e96bdbf39bac97abb8b3d1a804ad1a334. 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/4m4aiyWCBH011DhxQeoWt1.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/4m4aiyWCBH011DhxQeoWt1.