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 0x56f8916c84ccc4175145c7a5a0e5343aa6807c8a47f294029d234aeab44d0812. 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/06c8cb9b-3c7f-4f5d-aa12-0782ba6f3f17.json and https://artists.proofprofile.net/proofs/artist/06c8cb9b-3c7f-4f5d-aa12-0782ba6f3f17.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 0x3d4ca9eece70a8579e874c0a8236a9e4ffabfa34512afeef89324d2ccea6e086. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USHM21442797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4adf531459b47338a10cd92bd355e8880dfc00b0d27fa1db22e5171aa54add08. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USHM21442807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e607aa57b704aad7c02e8646dc6c68e4d045f54e53179c2e710f2afc4a524f0. 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/BGA471409926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea1c024d740e7190ff275999518ae5cf7409a2969bbed41438b92f079ed2f77d. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USHM21594934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4408a5c4c6191c5652a8131032aa5e0e771f8b9143e5f7b0d94bd2bed4b28a9f. Chain 2 (Bitcoin): anchored in block 958529 (2026-07-18T09:21:41Z), 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/USHM21594935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a3c915c67298a83e67c75fede654d07957ce37f966a7b4e422fbeec5dcb64fa. 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/USHM21594936.
Dracula Between Crosses (Music from the Motion Picture)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22a6d1393fe1eae94cdd7849c794cba1823ae70d27c80fa108c16b665b708389. 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/USCGJ1709057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ac61b22fba4c44a77a43560fbc08babfe0b9f0e3074a1d8d661ed942db67d55. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:22:48Z), 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/USCGJ1709059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc449f5320bb5a3d9fe0842cdc6d040d63c88dc0b7a73c42bc11b01afeee0aac9. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/USCGJ1709060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70186fd1dce922e6e7577bd4c8267bcf7f7dcff2b6e4b689b504e52278d143ad. 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/USCGJ1709061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85c80c839b789a0ce1738365cdb4eb5ee052b9533c83e5b74b4ebd9f6661bff8. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/USCGJ1709063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9398dc266b732795baa1c78b530443d772ac1e6cca81a99c72dc3828033e0ca4. 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/USCGJ1709064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf78f99fa67ff4a5968d9bd9c3d0b8876430d09016c2d2f616891f22dd35ebf9. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:38:58Z), 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/USHM91747660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd38496c0ad2fb5d178e8b5e79b3e86afa496f59de889ec27f2d47804ab9b5328. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:08:58Z), 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/USHM91747663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe61e513c725ce22e0fee77a9a075c5b14324a62e1bffb2e13d11e4cd487124d. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/USCGJ2069826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78ccf730002887627be4c40c0d6fc2b06c985501c6784b1f3aa1a03ae6c9c736. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/USL4R1818593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeee9b5893b7ef1fa9dcbe80738b8e9ad7614d82e2055e46cfd706c453a9cf2b0. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:27:43Z), 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/USCGJ2069832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d55e463752a29387614f93734c77e6abee56e3828a4acca02ff94e7f64f84fe. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/USHM21804156.
Terminator Theme (From "Terminator 2 Judgement Day")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c89719d92ac79fa505939be33b428a8e9d90ceb9add38c24f99438292481015. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZGWW2127191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa01ddc2cd8acf53f9ee51d1cfdf1389bfb3190f3c3663d2de20249449311e3a4. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/USDY42103335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29e11a0e8b935a32da0f797f53986b9ae6f9929a051dcc5519af52846166c7c9. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZPJ32317301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d159603d9522a184fa30750bdca67604342fbccb707079ebd64306e17919d79. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZK6H2496338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x797b6551c7b07f29e655f9bedc7dc66952883f499f0d9cb097b4c9211b47ac93. 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/QZWFR2472027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfcc16aef9a2161b80e1fc2155fcd15be0f6ce4ad97e4efb4a9ee9f726386b41. 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/QZZ7R2404588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8b95c83437c5998dd192109200853f249047b13abde5feed143c5d1233d0c9b. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZZ7R2404589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06019068c4122aca053a838f157b8cebf3ab4a5f49630619340e8e9b859bdd81. Chain 2 (Bitcoin): anchored in block 958369 (2026-07-17T07:59:06Z), 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/QZWFM2430910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e3c085519ccf39616ea97c7ba1e3835fddb3067515494c9b3bbf763ce99c855. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QZZ7R2404590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba68c8ef97b6846483fae03d7cde962a9227f078e1b738a640bcef0c48fa6b34. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T15:52:13Z), 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/QZWFQ2486747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81801da7e9cfb2256849ce26e34d50245747c5b757b51327a7f4a530a8dd4d4c. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZZ7R2404592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59a14215511e4940f0e2977ca9bb87c6a0fc32633a8d24ca1d0c331601d5349a. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QZZ7R2404593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d159603d9522a184fa30750bdca67604342fbccb707079ebd64306e17919d79. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZK6H2496338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd627f6d01a9acd1493401aca15be7710900d20c8492eb1d94059e5a990faf9c. 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/QZZ7R2404594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2130c55a24b75fc661555bc43e90a831ae83f14a50f07b3e394d3cbbc0a25f1e. 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/QZZ762438844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06f3dbc9368cf596a32c359dce21410c839194d91ebc7be44abac94c8b571199. 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/QT3F32417739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93d3692f5cf45df437c4b8e58a1fd770014d0c5458bd995f6269d9075ba3560e. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:35:48Z), 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/CAHQJ2566176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ca9c16fad6866d0226bac68096b6cc556f7b01a07daeb8a0355527e3649a7a2. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:38:18Z), 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/QZHNA2554248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda7ec9d5b3ed9880c28580c0afc1edf5734f84ae2001eb216111fc14bd425afa. 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/QZHNA2554249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa8f0523511b73fd8abb8a327b41ea003c0e8706eba1ef5bc2ee4cd8c5b55dc3. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/QZHNA2554250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f46a21e75d7f83c7f6380be6ae68600e20949716ad5b3301eff8df8aab2299d. 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/QZHNA2554251.
I Can`t Hear It Now (from the series Arcane League of Legends)