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 0x1f53517107a2d1138b8b02af22a46ed0a4a31b9f2824c7592cfd8d85ca836805. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/72f5c500-2725-4a17-9a5d-05e430e6957e.json and https://artists.proofprofile.net/proofs/artist/72f5c500-2725-4a17-9a5d-05e430e6957e.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 → block OTSBitcoinBlock must exist at that height 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 0x85373eefeae5831a033cbe65b0f8a7d8aa802e40457929cee109475935b07ea6. 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/FRX452469068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40ee731423284f2091d16dfc21b07c29370ca764534b35c8598cfb59e7687072. 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/FRX452469076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe779519eb74102f2087b46e2bef97b37ffc94553110410fe145b5101e0c41a8. 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/FRX452469077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda470c8f5d17974116a4cb64e721b16285517f7e968c29757fb451c9b10275fc. 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/FRX452469072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ab37b11d7786e3b82dc45b67c6b510c951fcbd911c9f4e81aef56c8ca22ce8e. 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/FRX452469073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b55bdbcbc15a4d4ed50230d344a6a69422a734a3bfa69dbcb8f855279127b97. 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/FRX452469074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d63a5a4acb9000df4830b8eac9462bbe4f16269ce9d98487d0864b6a1a8dfc5. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FRX452469075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21fa14e942585bdc3df17237302562b72ccd3dab6a624f475224b6aadccc90dc. 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/FRX452469069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe533c5c729eac52b13a562634dbd8f73d968169c7b7262bc2176c283c4c20306. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FRX452469070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea13869542a8642b31a1fb7ff0a830ec270f73671db18e7b211eb973be128725. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FRX452469078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03c8526cb5d89a62616ea62ba4f930ebd6b6ebb014c5d9f9c323f2839bd04e8e. 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/FRX452469080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79031736a37bbbaf9887d630c57ef8f41f25026acb50d2763c14bdd6b9fd9618. 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/FRX202493861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x626212d167e6bcafc80623bec5e79cc65ac065c95e937a672e46695f57017ff8. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZRP52221424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe342416c61f3824afa56fedf031788809f44c05016b515cdb8bc879544a3d37b. 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/QZTAW2280441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1233c62cb785761f8eaf1d5171f6927d928f63a8bf2ba43ca571d87728e996af. 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/QZNWX2238167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06326eb3326b623f63f5cc85f300b06be83d7fa425bebe6a84e74911280bb34b. 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/QZTAW2280443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96c792c0c8b1a9a07750d59e347f982757511da0de160d71fb39ddb88aa78f14. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FRX452139091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e83d91f061a39b5c9a815b088d089dccde0675496b640ee1fb9f1db68794757. 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/FRS182108289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40e625895aff3ff05995efbb651198a57a04406a56cb4a91843513da5f8ca32b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FRX762166740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37574180176849566991518782f86ea3f38c58e7af1b63555bceed80c77e550b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FRS182108290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70192633277679d2f2c2d453ff2a050769d8e2d1dc2724f2ea0a1586a26edbe3. 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/FRS182108292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf5526bc5e5a1cfe9f4d1fc9ebe0361738cb766227e07c262a842c9b1f0e52c1. 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/FRX872166811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x072d9d7bf90586b3d8607210ee1912a175eb117b6eebe573786b40ecd025f200. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/FRS182108293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeec1d6e37c4cf7b5049a54fdca794e42afb10bbc5d3c1d3d518c5b91bd146fca. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/FRS182108294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9580adb4788fa3f397960e3242affc09ecd567ee2424f60c5ec07cb66432ae99. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FRS182108295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5bc2183d161b31cc083ee581084b899fb4bf4fd2777d4aa26c258a3ec122881. 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/FRS182108296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6616e376329a0de8291569425b2428c12d27255b4d9cb9690b027a998d9de2bc. 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/FRS182108297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2a76603b73ea8b5bcd3ef22fe9d52e48b24adcf5e9aac0c49a6d5170bd7e00a. 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/FRX452270719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96c792c0c8b1a9a07750d59e347f982757511da0de160d71fb39ddb88aa78f14. 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/FRX452139091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd35e36963bdc6acad7a91b6f5400192e9320cad271f8c2c11354cdb8e21a4cf9. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/QZTAU2316156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x666ceb1e91b98419ffabac5c762570da0588c154fd6966b6bcc82b3220f27d62. 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/QZTAU2316157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76194302e22f555a7409d118204468fcdd36fab42386bcd72860dec0ad2b41eb. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZPLR2203106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x891e57b104a86a227948d6bcd6360d6e405763329510f2c73660614ce0c0cb42. 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/QZTAU2316159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x917d78c64f61f54dd4e9a42edaac9e56dc742a903db9ca0e827ce352ab3fab98. 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/QZTAU2316161.
La timidezza delle chiome (Original Motion Picture Soundtrack)