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 0x73273765b7f81dbdd3494f6ad278bbb8721f11c90973cd99fc26b5cb95af67c9. 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/9c34dc6a-e5fe-475b-b149-21635461e1ef.json and https://artists.proofprofile.net/proofs/artist/9c34dc6a-e5fe-475b-b149-21635461e1ef.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
I've Been Waiting (w/ ILoveMakonnen & Fall Out Boy)
{"copyright_id":"0xa906d1dbdf9f87b006f26101ba14cde5100ddd77fa339b403bbb3323073751db","isrc":"USQX91900290","name":"I've Been Waiting (w/ ILoveMakonnen & Fall Out Boy)","registered_at":"2026-06-01T16:19:30Z","spotify_id":"2v5JTeM6hSmi5wWy7jiwrI","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 0xa906d1dbdf9f87b006f26101ba14cde5100ddd77fa339b403bbb3323073751db. 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/2v5JTeM6hSmi5wWy7jiwrI.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/2v5JTeM6hSmi5wWy7jiwrI.
{"copyright_id":"0x21c95ed0e390bef7cf3405205e5fbaf037026365427a5ed1aa6ac3913ad141ca","isrc":"USQX91802294","name":"Falling Down - Bonus Track","registered_at":"2026-06-01T02:51:12Z","spotify_id":"4jvjzW7Hm0yK4LvvE0Paz9","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21c95ed0e390bef7cf3405205e5fbaf037026365427a5ed1aa6ac3913ad141ca. 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/4jvjzW7Hm0yK4LvvE0Paz9.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/4jvjzW7Hm0yK4LvvE0Paz9.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc624749f015fa1fc54f60127b18f89918f7a92cdfe04d7747d7d9d80160d0a6. 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/7A0f2o7lsf2e31si3BXpcf.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/7A0f2o7lsf2e31si3BXpcf.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x122a922adaaeaf5b7a42a8ab3a0ab7fb44d71093cc066300096667c158a9747d. 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/3gtMjheLBqyYI3DNWLdK8h.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/3gtMjheLBqyYI3DNWLdK8h.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04b60cd0346af127dddc16ff270ac9c1c7c5a085562fe80d7daeb00f881c7544. 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/0AWcCvXJkszBIFz4YQC4fm.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/0AWcCvXJkszBIFz4YQC4fm.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7acd8bec87e93cd772ee87e521144659fd00d128207c455699e7ff790fb922bf. 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/4cYRltLe5uX5K1QUY73YuE.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/4cYRltLe5uX5K1QUY73YuE.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdad3aa667c42e0fb0fa429f9b6cfa72ebefefdb1b361626047c0f744579f5145. 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/4VqEUmMjhbj6w7g5EVKILE.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/4VqEUmMjhbj6w7g5EVKILE.
{"copyright_id":"0xa860d1fae1a4986842cf17b09a0640bf284e3b0f36b9abbb91673b2d55e92e39","isrc":"UKELY1700033","name":"white wine","registered_at":"2026-06-01T08:13:57Z","spotify_id":"55aOpqGaMRWhwm6cDPUtsV","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa860d1fae1a4986842cf17b09a0640bf284e3b0f36b9abbb91673b2d55e92e39. 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/55aOpqGaMRWhwm6cDPUtsV.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/55aOpqGaMRWhwm6cDPUtsV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00dc6deca4f4101d8b6fa833ac33db3d417651a54007d94246dc91773ab6b48a. 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/57NsyEzmk0NT3NcOwuQT55.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/57NsyEzmk0NT3NcOwuQT55.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b9c8437807d4d9a4ff9fc4f22be0b436d1989e1d86b378236587ef7867b1c8f. 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/2iwTBX0feCCekH5Hg8SOSJ.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/2iwTBX0feCCekH5Hg8SOSJ.
{"copyright_id":"0x2703077e904aff3b9aed4f506fbd8f3a10d6ea3957f25e4b3ad1987b2a9c218e","isrc":"QMFME2486192","name":"i crash, u crash","registered_at":"2026-06-01T15:16:10Z","spotify_id":"5Kc7tvgQCCayTkJdVl8kS1","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2703077e904aff3b9aed4f506fbd8f3a10d6ea3957f25e4b3ad1987b2a9c218e. 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/5Kc7tvgQCCayTkJdVl8kS1.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/5Kc7tvgQCCayTkJdVl8kS1.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x553473226b289cb8bd65c4b5de7ed57abb82be6fa4c4b74246539d8d3fdc9b85. 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/3i2SZSfmDRhvSkj0vZ1owx.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/3i2SZSfmDRhvSkj0vZ1owx.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5cfe8dae61bd88034690f590c090204bc60577258c8c5ecb3170a9f24578685. 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/07KdHPTGNC07DqB34T1w7M.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/07KdHPTGNC07DqB34T1w7M.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9ba4bb3139350eb25f8ececa2a0538e9903a5813e931479169e792c39f41995. 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/1Viaum8JtbWNZdt4oyCYtr.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/1Viaum8JtbWNZdt4oyCYtr.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28c6c2418ad622b13b049d4b20a505df349fbadfa955280f6922aafcba551b08. 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/4k3xDpAdBuM17mNNHhOZkK.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/4k3xDpAdBuM17mNNHhOZkK.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40377025b59a39f6944409724ce241e22d850a2fd55e1b55196b8dcca6ad1854. 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/6te48Fmf7E7DaBltRKRPE4.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/6te48Fmf7E7DaBltRKRPE4.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe59ddc5a96d635e39c04d0c02b066b08e2d1b30d44ac7a4ac4a4c1f54978a762. 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/3JbnEiTszmfArBtYVU4DoO.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/3JbnEiTszmfArBtYVU4DoO.
{"copyright_id":"0x0c80d1c5c43c5e17e348d22a587a9df148c28d3d0c95eaa548891bbbbf985d25","isrc":"USQX91903108","name":"live forever","registered_at":"2026-06-01T14:31:31Z","spotify_id":"1Vjn9saTlgAdag9UECRafl","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c80d1c5c43c5e17e348d22a587a9df148c28d3d0c95eaa548891bbbbf985d25. 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/1Vjn9saTlgAdag9UECRafl.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/1Vjn9saTlgAdag9UECRafl.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82b5f8e3033b034268373150d8b846b289836171e19f011bf35623a7db0699ac. 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/5nUqZkAiYrfThl3W8v8aaG.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/5nUqZkAiYrfThl3W8v8aaG.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82c9e847a98fb7d5cdaec33b869f2fcd77107ae35ffe9afd5182dea95ff2af74. 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/0pw6zKvwrs0BakTr5AGup9.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/0pw6zKvwrs0BakTr5AGup9.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90e11ca4af734224528137fa6c5f2d23ea7a9d053b1cd32629821f98d931ed91. 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/2xa9224f1RXkIDoRvs58yI.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/2xa9224f1RXkIDoRvs58yI.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4ec3c2b86ed75cfaee6fa67f7f53402bb0654b05ec5315bb183fabfc3977be5. 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/2JRrExulyTlO4eOFNoZPnp.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/2JRrExulyTlO4eOFNoZPnp.
{"copyright_id":"0xdb65477485876144ae160ebedd00b62e5fdbdd44dc1476b6319eba9329410c51","isrc":"TCADI1755434","name":"Crying (feat. Lil Peep)","registered_at":"2026-06-02T00:54:57Z","spotify_id":"5giCoaf8Yuk9DsJtdijEGX","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb65477485876144ae160ebedd00b62e5fdbdd44dc1476b6319eba9329410c51. 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/5giCoaf8Yuk9DsJtdijEGX.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/5giCoaf8Yuk9DsJtdijEGX.
{"copyright_id":"0x4feb558c1f6702ee600d69118420d0bf179057563c5be501bd315a0b1d95e580","isrc":"TCADD1717139","name":"On the Floor (feat. Lil Peep)","registered_at":"2026-06-04T06:51:13Z","spotify_id":"6FSiEAhXObWYWEwmzje54o","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4feb558c1f6702ee600d69118420d0bf179057563c5be501bd315a0b1d95e580. 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/6FSiEAhXObWYWEwmzje54o.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/6FSiEAhXObWYWEwmzje54o.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe91c780f03300f579fbf89e0164ac93cc7c104eb6d3459be408c1ab73ca87a14. 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/1Gg7WEa4XY0k6Te85tDFfV.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/1Gg7WEa4XY0k6Te85tDFfV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8ef647d000792a89b534438d40b6d73adccb59efb8f507a31d0d0a35a77494c. 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/0pN0P4cQzSoJGHUBxPT5d3.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/0pN0P4cQzSoJGHUBxPT5d3.
{"copyright_id":"0x5997562412eb4d74bef4f32baea243e732fac7fd60fda6983d525d7f6a1ec44b","isrc":"QZ9JZ1718289","name":"Supernova / Reflection","registered_at":"2026-06-05T09:45:24Z","spotify_id":"37vg1lxQrG6D1jBTaFXRCQ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5997562412eb4d74bef4f32baea243e732fac7fd60fda6983d525d7f6a1ec44b. 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/37vg1lxQrG6D1jBTaFXRCQ.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/37vg1lxQrG6D1jBTaFXRCQ.
Got Em Like (feat. Wiz Khalifa & Lil Peep)
{"copyright_id":"0x07a36064febad6d4587b284f6b9413c29cf00f84ba00572103f88b9e7b371324","isrc":"USASN2110103","name":"Got Em Like (feat. Wiz Khalifa & Lil Peep)","registered_at":"2026-06-05T05:42:24Z","spotify_id":"3APCgqj1RwnYmmxVVBnQ9j","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07a36064febad6d4587b284f6b9413c29cf00f84ba00572103f88b9e7b371324. 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/3APCgqj1RwnYmmxVVBnQ9j.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/3APCgqj1RwnYmmxVVBnQ9j.