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 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 0x31f61d2c0b1eb544480fad6a845531ea13be640c84c7f57524e3fe4938116beb. 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/e2effbbc-f52b-417e-9208-5d10ff906867.json and https://artists.proofprofile.net/proofs/artist/e2effbbc-f52b-417e-9208-5d10ff906867.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 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 0xa3eb8e7f84eb41ab00853104c9111e7ee05230d7609a81acd55ec46d55872c7f. 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/USHM91891703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89a47414a620fb2958a4f1944767e089d6b33ffbcf82f7860686184ace0539ac. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZTBA2381562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6065d79a1c4189201c9c2b674ea32c30a1df517198c668e891463441cecd90bc. 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/QZFZ32493323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe292fb026501842351086256f5cc88182ef0be706a43c8c0a2bf587a212c295e. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZK6G2479388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8cb5827d868ba20c248b5a8b2864fc506c0c0d179b173c91cc3499e12048284. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USDY42367989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffedf6c92d02a705fd71904e845ffb81c69019a3c657e83604f22eb82ba2efd5. 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/USDY42367990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f0cb7fdb03deeecdf3ca58b5ce34bca5800244f4fb70031cdaf803e3357e00d. 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/USDY42367991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51dd98970c90dff22998e55997e060c9e5c8d13274d3d89bf28f1223a260fc59. 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/USDY42367993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecdc223e8853ba77413f81a6289e43d54dcfaa29b69dbf8b92b16b5eaead5df3. 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/USDY42367995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cc1d19fd4cbc3bbfa0785ac094eb0c6e808e467d66cf7942159dc2d1f417ada. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USCGJ2108477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc42b64491af2766e59e17341bdb9be732475936bcc9769c185ccb39d45c8a4df. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USCGJ2108478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b4ae7d313c303e5b96561ed42382d842dd2537a4fa286c6819f4025ac3069e0. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USCGJ2108479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29046e1fa5485bc1b840332ceab039ca8597a8e18733c071f3b91ee6e8c8b130. 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/USCGJ2108480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeb53d1446683f2b5d73b52db534074ac81c12f781387a9f02c1cdc6302afa1a. 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/USCGJ2108481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d91f7baffe77add4ad86bed6c25eff14982be636c379cd74083162dc61159b9. 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/USCGJ2108482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1be8dbba1db02eaa4245a7cb80409bf837857dd73bb0ea97ec067e4f62cf04f6. 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/USCGJ2108483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7da4230d9f2b46666efa83ddbdcc9e7c503fd428dfd8e0ef49e0825e0de569e4. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T14:47:58Z), 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/USCGJ2108484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38a9d7da4aa79436129a5c0e5ce4837fce0aa8d1c7c27750f4544e68908cb341. 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/USCGJ2066881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8568f99032876aa3e729b0173c6a55a5f739abcdb3a9b8ef4a883aa4f6bd291b. 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/USCGJ2066882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b9f2cc9cca35d6d96ef338c5ead7ccc798bab62cc0ae6e14ef1810bc103b094. 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/USCGJ2066883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09a328741990f8a77023c4d554e2249533f20211c6cfca1b4f30ac63c381551d. 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/USHM91908926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x372811455311b87100d56a7007d819422f3ca40ce8fec3c1eaf3e82b44fc54cd. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USHM91908927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa330c2c9ce19077a81b61d93488a04cd635d8239f47070588094dda8295b2668. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:10:14Z), 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/USHM91908928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebd7b85fd509a8577321be8bd1951390154d6975559f273003d0e265c842a9e1. 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/USHM91908929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53005f5943045cd5ec6fad72cf803d6eaf8354b06012e942e080a5004deeb968. 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/USHM91908931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bc46d421a6b668642fe13f95127385695f843dd3ae4ec930445c815817223c5. 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/USHM91786936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3617c09b4fd6f65c39429697b7fccc3f80e88f22848a1f46486011dc14fbcf69. 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/QZZ7X2448760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a4a28329f119956370d668d241a3998d4ed1bf4e8e1ee2d5dfee2d72e6dfc06. 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/QZTB72420730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bf60678d6cfe739b864a242a621f06b38b02ceee3950a8cd3e2402db359fb85. 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/QZTAU2404357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6065d79a1c4189201c9c2b674ea32c30a1df517198c668e891463441cecd90bc. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZFZ32493323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6ac2823dd6d1ef45b62bbbef8d3520e7378b0593f28b4402f30ca9921acda72. 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/USL4R2314725.
Death in a Constellation (Antipole Remix)
Death in a Constellation - Antipole Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e443f10ae8e18cabb5caf82eba71f1c7e7a1802d9925096af339fc16998c21d. 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/QZNWW2330673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ae1ec1a13e4a1d8e8c8ea7306a0fd38c9176481a313c5e6977ba4c2418e76ea. 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/USCGH2152289.
Jelly Dream (Antipole Paris Alexander Remix)
Sonbahar (Antipole & Paris Alexander Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2338a6af871e49134de10871d036cee6bbf9107ade4d37c0b4ddb0537729776e. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/ATR981206513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8fce905eaa6f41fccaff031a1669d0dceb4fe39aaab6532b66cd8fcf5190222. 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/USHM21944939.