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 0xf2e792c90d80fe7d122ff792719787b7885569b44315c1ff9fbc19562577b85c. 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/8332c18d-3226-49dd-9ec9-358e819ed70f.json and https://artists.proofprofile.net/proofs/artist/8332c18d-3226-49dd-9ec9-358e819ed70f.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 0xdb5508e512574c7f8d049e98b59140f305658a12edac8e370309dd1f4ef61300. 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/GBKQU2462461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7121966f9a15b9b4e45cf420d0b50de7526edaa0ef926b5b845a135b796f7912. 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/GBLV62306917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x108e039107059612f9cc99c20957c2c7c890c1635da212f3497ef3834611dd47. 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/GBKQU2460024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80d09eeafcf43731a80421400dc752102f3aee198acf17622b4dd90c9aeed930. 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/GBKQU2462464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9684ddef079bff42efc9f563b4219e7847efb2bcbc788a8adb15578164922174. 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/GBKQU2363264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b3ece6f723185b4502e2e58ed85276c921f7a8fbc4ec1c0a2b226c096b1b345. 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/GBKQU2462465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4db37185d57e4d96b1fb455aa4b6cf662835a74a1b89711b96c8d2409cfd0ed. 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/GBKQU2462466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49aae078c751d9d6dce15cf42784b8343869e2b403b40266893d008df6cd5ed5. 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/GBKQU2462467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfab40e307740761891e7eda615b95b15673fcac7d91e8129e1042d794f1ab98. 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/GBKQU2469041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x108e039107059612f9cc99c20957c2c7c890c1635da212f3497ef3834611dd47. 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/GBKQU2460024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x138419edbac7ade55a615a3730dc1943d99d3780cfdf87c15a6ce72c213f7c42. 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/GBKQU2445763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f0eb498701bfe4e08e17f10633870906bf6725de5d3e5ee6991c920736a5b48. 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/GBKQU2427537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6fcdc8685d5ee5200eace467479e23159f1d239ac4caf1a80ad3d47a0c41fc8. 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/NLG3W2400040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7121966f9a15b9b4e45cf420d0b50de7526edaa0ef926b5b845a135b796f7912. 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/GBLV62306917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fee31c5c0da7b159e989614b0ff1c79324c60fb0c2e43a5d503318bfd489dd4. 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/GBKQU2379139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9684ddef079bff42efc9f563b4219e7847efb2bcbc788a8adb15578164922174. 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/GBKQU2363264.
Bring The Force (Official Harder Force 2023 Anthem)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97c0c65fa4aea4735aa14c93ff7b3e72168557d3c75b542f52a2aee315201685. 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/GBKQU2347283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf73c946cc86b8a6a0ef8c45053e5fd84f7e7d2f2eec98e4057c5470e1ced1578. 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/GBKQU2323105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fd0b2726720412eb56967245126ec945e24ed24870889acc589225b27ce7c97. 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/GBKQU2323104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf73c946cc86b8a6a0ef8c45053e5fd84f7e7d2f2eec98e4057c5470e1ced1578. 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/GBKQU2323105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fd0b2726720412eb56967245126ec945e24ed24870889acc589225b27ce7c97. 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/GBKQU2323104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b207a4a140156dd2c087e97ad33eeb3f9013cdb352ca257905b255a0a7446a8. 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/GBKQU2310867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa89072cc72c24f60d373b9360e1284e01e94a7f0f0deafbf7670917926262d66. 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/GBLV62216255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07c58f8e67fc37a3b57ea0414257ab39262006cc7cec4fc0f762d59d3a24f2c0. 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/GBLV62210375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa04624347508e082f84ce8d9a7e7430a0b361a3d040a2f77c3d15638b55f7792. 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/GBKQU2286394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x139612a66874edb7fc7572e527598c9adfd6e5140d9dd51168f215de9582a4c4. 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/GBKQU2263784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cecf03bec660cd104d4135fcfb7bc17ae0b80e8e763b952b4f69e27ac29186f. 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/GBKQU2219922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf548391a602f54f0392a622db622bbb4c7962d37a3de085a7cdb89150dbe6b5. 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/GBLV62136667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e0bff1b84af23f8202b5d39a0090d7bd5a44f23c715522b385c222a29ad02ad. 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/GBLV62124412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb86cf81893119492536553ff013c3df87418d4220d05987bc89df7769bf8ef18. 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/GBLV62111087.
Full Throttle (Official Gearbox Full Throttle Anthem)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdde1ecb27c886a39e7f76f5a885482d624b1586c471a81bc222afa6cb58c4c7f. 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/GBLV62111086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x439d41b8a9d6d96459b6a60bf0c8b118b2ba0752c1e25bb7e6151b807a2b6065. 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/GBKQU2181032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8853bd12e84afe0fdcfb5e859c15b3b3c83cd36f6f5736ecbb29e9a27d2efe39. 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/GBKQU2147430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0b9adb0bef5c9f3decc57fd42c0dd9677fc8397c6615596dc609d00c60922e1. 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/GBKQU2121095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61c446cd6dcc290a9330d8423bc6ad8acab33e95a91f264758493721401dfe54. 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/NLG3W2100023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d5ffbb89b0dd93a21f3659f78411582044ce4eb7b68f2a030fd40cc3a2325f4. 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/GBKQU2106458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x194d838b56efbd97a9a3d06f492329d820e50435ede5bf0280ea08f2d531726a. 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/GBKQU2104586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa994a971f5c26510957335e2a69e1074cfa060df67e1b1f34e449460f6468831. 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/GBLV62028545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1717c6bccb0a32a723853d1ab8a039de4eb15c03e196028835732da8e8fab7a4. 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/GBLV62007740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc3fa55a2d46e77bc9b55637c12490e755541ec76b23a461b1336e8d84518ce8. 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/GBKQU2084232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6fcdc8685d5ee5200eace467479e23159f1d239ac4caf1a80ad3d47a0c41fc8. 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/NLG3W2400040.