1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0x554795e2dd65e34893beb3d4ae236c34b17e361b935e7f0da06a899d061261c9. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/aba799a0-32df-4aac-b807-d48b1d9d815c.json and https://artists.proofprofile.net/proofs/artist/aba799a0-32df-4aac-b807-d48b1d9d815c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x943b9b01d930252d51e69bc37473d2ab3c31aea00602e6c5b77ba5ab443c4a4a. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USKO11001324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88322424f944bbb7a1e29d846830dbc9adfe0e7917ccc5404b074dc3d437b39f. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCM51400083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf862dca36d3b46a3ad56aeec6502d35ea144af90a47e307605c4f6931c38bbb8. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZAKB2317938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x648747096673a1d64e76784a8feb7350304f355e1588b6d89d8512f1eb95e795. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCADR1806087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a82b281de001764b40a21fe6fbf16159b78da46c2d574df8187c9add1a14554. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA51871600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77987b77a38631080385964d2231619ba67a378d99573f158ffc0f9b830de4f3. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCADQ1886746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3ce9eb49bc57842dd324befd53262254f21b0b7b83b389835db13bebf0ef942. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCADQ1886752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3f454692a211fec21aa1b3362d74e81577a7e2e4bf157408ba0655fa694e5aa. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCADQ1886753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0c344f6239a3533e87795dbca69422a4ca42b3f1009ef3914d65e0bc3ee0cba. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCADQ1886760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5ef93c85f0b6ab2f56ca99e628387ca5a25e7a9d278a5d5ef51d78c105c710a. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCADQ1886762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc40f81b9cb0291e2430b787190d04330306f3447f3b73521c496555a3dfabdb3. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCADR1806346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0483fffb7b1192b842c623742260c639f9c16e70e290e06346c59f1ee1c4a53b. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:22:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCADR1806359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa653ecd32e975b40c343dbe78bb62d95b5557a4c2b7109502b4c35dd17f3714. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCADR1806373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe017435e54738c0107d969810846edc7818159ff7b5860ccdcdc53cc2c5cc69. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCADR1806154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x202a7679f058d9661c2ecfb0542af16aa078232eedd2ee513042da73b5754033. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCADR1806156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc586637b420da048a4571051d39d1d2bd5dbe2bdc141d09ed7a0515fdf461fd3. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCADR1806157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7b581990381194758a42ad2cb98433ec28af412911392e9ff48bd83cefc6aa5. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCADR1806158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfff0f0e6a709db5f11f990e1a4acff5225783e004421c05173d1e00dd3bdf1be. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCADR1806169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d63d9d76833f0bcac3bd68709ef43fcba8d6bf311cf6389ddb10a5046c1c8dc. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCADR1806170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffaf80828968f414cbcf719b300da3cfc93f3224ab44c56a25d01f35e1f3edfa. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCADQ1886520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf7c92d831bf2cab1afb3574d7cdbfbfb62db9ee1ab0ae9807cf8af15512a594. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCADQ1886525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02338586c4a65fa049af97653418e265f8792e610e82a5c573bf0ab098479901. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCADQ1886528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18f6625344ca0c2f18841c7fffe067748cedf1f04ac602af9ae4c83c1cd9fc35. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCADQ1886550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bd83addcbc0dbb77f8f13f17631681ded97fde705ef3f3df1943edfc1e14409. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T08:43:03Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCADQ1886551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea9a55d1d52bdb02c9e8c2ba4a7a5926fabd2d9ddc4bdffee65e0311b06de598. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T18:16:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCADQ1886552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd839fc212617bb364b218462d69b6939d862fc7a05351f14ceea6a38cfe789e2. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCADQ1886554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aaed0f76113e05608aafcdeaaec442f25bf631c882cf543acd529542240d445. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA41846348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f4400f89a3b9ee80d31985e262aad1662b78115c318a2a4de4349c34e094e8c. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR1822823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16a8aa37ae43eeee69f872e4e7ba3ae606cb8bc41ff5118c65f485118a4c6028. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR1822824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4bef7b507ca97d67b7437eea71665c7d148de25268869ec227f90eb2576ae3c. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAEB1976751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec43683c3bab9580c79f80673369f227b708d589e489361c15bae1eb6b748635. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAEC1973078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x179e1149dd01ce01575a7065807c32b28071e71f71fdb6d334b2bcf0be17c227. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCADX1857207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe61cd006c3295c4ae469824b3dad699e1982f5f655d2e6763ed17da2692157be. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAEC1973082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72d7f5ddcc784ce475423aab545ea7a2fbc7cca2fee66cc3725ce6979d170513. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T02:05:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZD441900703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4d41b4f7295942f00749f3c5ed87d6ec04293c66269b5c332162fdf9310ae03. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZD441901172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6d559e8a4216befd5a8a0acc867a2a8ed26128edaf2175d353353e8424a04af. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZD441901175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa00359914417e6f7c5fa80765e8adbc616b0a4d36848057f0540ad39820b1aba. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZD441901179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bca210d9fd83667ee525e6b23d69da0160d7591de7abdd86330db00827acd19. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNYS2100090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdb57309c4586eace38a4119240b93fc5964def70f76c0bdc45a73a89e1d6717. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNYS2100091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc73586d8330ff0b3623697362928760ef2b3017a105e50787e26dc8f0fb5743b. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T10:27:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNYS2100092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94986dc30268b6a604b5bacd41ce582bf7a64c7478484780717513c01283371a. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNYS2100094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e0bd48f7ccc523fad7683bec5d75794535957fdf78391a73ca196184bef72cd. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNYS2100099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd40b5ef2b815517ca1520d9683dab2c42d4c062e63fa0a581b32f026d9726be1. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNYS2100095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1960f2b602716434b048b74b74ab3e19ebcc0fcf519d35f77fdd0fc9a76a26f. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAFJ2101043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x245e5baa6f30d1973882b9ff9bb408071c86886acbc20913c186ceaa3d6211a9. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNYS2100097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb65803e6a60ec8c49e8f628f81b54033cf9fd10a2995930a6480701e0826aa9c. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T20:28:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNYS2100125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe45207b4c673bd9f89c4ba81f4fc120855f5185b53dadd19f80fed19279874bf. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZAKB2204817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9583be180fb5d939b8b13d66653326ad167ded3b74bf1a463c30144e44e7e7df. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZAKB2204819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f68c881677a4eace14ac9821baaa5bc3f2f3e87e1366e1eb763834d52a57745. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:30:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZAKB2204821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x276e999d8e806e40785ec9a9e1bfe57b150f163d22e24f4645b2cf3af76010f0. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZAKB2204822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa24511cae3abcd4b901cd57876dfd23f6e95d5655b08264a404a358f08463d9a. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZAKB2204823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2910fbb6be1eed69c27b128628b2c7932c06313f67d3e024bbb7e8dff3eeebd6. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:09:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZAKB2204824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe248e30acf8c82dc040db13e6f183cfbca29b558cdf4d4e234addd586caf0f5c. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZAKB2331854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcc3eb367c8fcfa01933747736d814e8bf530c2ed7bc19834967345d95b69d75. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES82588610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a2b90c2e39c5ace3384c6f8451ef4f0be0423b216cd67ae4bc3a932f0dec148. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZN882578642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51465b7f92b0204debdc89962a72688b92e22c32f3cd8a90bb1d0a13df1bffe6. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUYG1342232.
There Is No Competition 2: The Grieving Music Mixtape
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x540f1639b95823b726d707ee41c951486c5c7590e724ae3066c3c718c1cd9004. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM71018502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fb530b643ca9a0d42243b948bb8d64be40147fc1db97e7d8d9a0477ea322e9d. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAHU2446888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4f668f84e84ea32143be405097074f76ba996436c48ff806f18f140020ef97a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6MZ2328144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac64644dc1c0982a37fb8d8019c6d4c4b81d68c1bbd12f25acb24c26fe675cb3. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR2095583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4f668f84e84ea32143be405097074f76ba996436c48ff806f18f140020ef97a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6MZ2328144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac079fab9230a07022788420522fc12f2a01bec3c3713ad74d459496f3580cc2. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAFS2139801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x855744fb38a2ad4e8894270067b9cd775bcde89482214c3bb80ee419938052c8. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-22T00:45:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMKSC1800255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4d92c7b8ce45f68d6d8ae83e5ed8bf421f6c95b01ae52600d5f160496960944. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZAKB2370156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba23a4f187e21ff02042e1a030d11ac24313ae127c5f4c4d275293d51e82df0f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZAKB2358129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3e9effe9a552e8a37c11586dd793e658aff2184c1908561d153094ed939a1a9. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUYG1158766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaea0ad9b372a63daab2cb5b525b8cac04938af94d35a216938ec91f54be391fc. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUYG1340510.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x087d2f84411ac7e324e06e46bf31de5fbe3c41df68c25f02de949ec1730961a5. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMKSC1800254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4727c3dfc6a9677b7bc78ecd358e5e7a4c3fa37734b3f24ae8f238e47b988c3. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMKSC1800256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f1206aa5d335f57488e0f4008401694efcdf69e90114306c11b27d42fa6b7f8. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMKSC1800257.