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 0x8439290dbb389510877cf3a49fa1d1bf56883904a4a2cfc98e8434e7a1bee72f. 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/03bdf5ca-26b4-42bd-a9fa-c0af6ba74d5c.json and https://artists.proofprofile.net/proofs/artist/03bdf5ca-26b4-42bd-a9fa-c0af6ba74d5c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x01e19e9747742aeff7c782bae9b29b7914ceee7699405ff3959e68502e3e13c1","isrc":"AUNE31900036","name":"Otherside - Two Another Remix","registered_at":"2026-06-17T23:33:18Z","spotify_id":"1CRhPXMXD6oz8lvJS5hu2V","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 0x01e19e9747742aeff7c782bae9b29b7914ceee7699405ff3959e68502e3e13c1. 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/1CRhPXMXD6oz8lvJS5hu2V.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/1CRhPXMXD6oz8lvJS5hu2V.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e519fe29e926e1d0d5982ce822f18a42f0f50362a16cd6512d5dbecd3c5e4e9. 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/4x7QhKk2ldziYah2adU5wZ.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/4x7QhKk2ldziYah2adU5wZ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9b9f7a5278f66b70a779bb852b54f7ef5351995037a8db7d3de9415b28487df. 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/7kqKRhl76HKpgQqblNHwyb.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/7kqKRhl76HKpgQqblNHwyb.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4862156c36dab54896027a17a358626e251010301a2b4569fc8a9131b66a794e. 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/1KZnomSfRfBJpJTVQre714.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/1KZnomSfRfBJpJTVQre714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7f2c29c9cf864f23658d41f621e36498adf79d78f49c5628cca4e3075a63bff. 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/0LJV6czZvkVdirRFFNBRGs.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/0LJV6czZvkVdirRFFNBRGs.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc30452e3bf7b568e9a0475e3285f7b084ee503a3d29030380baf798986547bb. 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/6A6UddoigR8D1pjqoktzaC.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/6A6UddoigR8D1pjqoktzaC.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaad495bbac9736b3bcec81393816440fe60b76fab6bf3a232422d55a6aab1f6d. 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/5OswodUakIItWe9jI9OP0B.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/5OswodUakIItWe9jI9OP0B.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a66ad3f8a79522bba3b76b46debde5b355b42ec6c31fc928434b81479a963d6. 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/6u4fcdHMjeJFAf58YUKo7g.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/6u4fcdHMjeJFAf58YUKo7g.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e34761905870988d5c150e79f9710f894ef57dbce221b744a103289ee015f5b. 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/3x0xTFBY9Af7mnWL1yJEwJ.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/3x0xTFBY9Af7mnWL1yJEwJ.
{"copyright_id":"0xe00ddf93fb9fbf460c763e5e76f6b06c29a9841c3c2ccbfa0f31bbfa11f0b15e","isrc":"DESY21401250","name":"SLOW DOWN","registered_at":"2026-06-25T07:19:48Z","spotify_id":"4Y0WmXKiIHEPJ8tbOTlfEZ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe00ddf93fb9fbf460c763e5e76f6b06c29a9841c3c2ccbfa0f31bbfa11f0b15e. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4Y0WmXKiIHEPJ8tbOTlfEZ.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/4Y0WmXKiIHEPJ8tbOTlfEZ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c7f2efcb03ca6eaae07fdc78096bb38c925d29937f6bf4b53a9589846a3d0a0. 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/3425nPg2VPkriUOstXE4EE.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/3425nPg2VPkriUOstXE4EE.
{"copyright_id":"0x1ebaf98db14e72371bd20df7c45a6c5ee9fbc7b99bc885f8902f498ed4a21c3a","isrc":"FRPES2301390","name":"Morning Light - K, Le Maestro Remix","registered_at":"2026-06-10T01:33:20Z","spotify_id":"0iOeXgdhbqkBiU5UdQmkz1","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ebaf98db14e72371bd20df7c45a6c5ee9fbc7b99bc885f8902f498ed4a21c3a. 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/0iOeXgdhbqkBiU5UdQmkz1.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/0iOeXgdhbqkBiU5UdQmkz1.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbad436c403ee01b2befbce24042d9e6f832be45a302370537b2d1e0f8e00bb39. 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/0Xr4LShWRx90lWJkBesLOC.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/0Xr4LShWRx90lWJkBesLOC.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08b8adb81330050e419fd186602a5fdd8c7d6c7ce84209cb67006d974da29990. 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/4C6nvaVEQHu0Jv2x6SGHAD.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/4C6nvaVEQHu0Jv2x6SGHAD.
{"copyright_id":"0xbbc0e5043e100b223d8d2a2f02befbca4bcb47bf54d1146f06f5563a2fa92395","isrc":"DESY21401251","name":"OUT LATE (Single Version)","registered_at":"2026-06-09T07:21:39Z","spotify_id":"0ye72P9jcCLsZJNp9CzH4k","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbc0e5043e100b223d8d2a2f02befbca4bcb47bf54d1146f06f5563a2fa92395. 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/0ye72P9jcCLsZJNp9CzH4k.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/0ye72P9jcCLsZJNp9CzH4k.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x065e89ccae37fc06ea4df761efd4799631259944685c3df33dcf31ca22997d78. 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/5KpJaES2j8cNRMbCJMC60g.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/5KpJaES2j8cNRMbCJMC60g.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24a75212a6a1acb53e9174cd0d53d2db254d826bbdc651e23c6be3f19040171c. 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/1gq7xGoLMIQc6sdVLIwrwx.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/1gq7xGoLMIQc6sdVLIwrwx.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x347535f6a2a4f832e0cf582fb8400ca710333d4a6b2af88b7cf65c86d80e1580. 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/2sGOwURFfymZZU86Y569Sv.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/2sGOwURFfymZZU86Y569Sv.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f92233e251617c7f4f68b51b5aafe71b233247fc29a943b490b945e70dd787b. 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/4QIDL4Ov5cKWzG5Kg6Es7x.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/4QIDL4Ov5cKWzG5Kg6Es7x.
Olivia Nelson 'Hideaway' (K, Le Maestro Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72a874804b0089582cf191206f08efdd886de09bc899895d4018cc27d9a101c8. 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/3LQzTrhtErNPJK6m8kRp3L.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/3LQzTrhtErNPJK6m8kRp3L.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54d1513c4b6b1f6d0e1b7bd706302b73bc4ab4b71f5b29c957f35d03ea32988b. 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/712rK9erHc2UzXxiIMO8N0.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/712rK9erHc2UzXxiIMO8N0.