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 0xf22f7a67aa405bd5fbaa06183db293fd7104c9332ab034b009190d8f88547846. 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/f9cb16a8-c106-465d-84a4-84edd59dbbfd.json and https://artists.proofprofile.net/proofs/artist/f9cb16a8-c106-465d-84a4-84edd59dbbfd.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 0x0a317ba2863afd8c418e5672eaf8f4a00619216ab6949a9e72527c23127b1510. Chain 2 (Bitcoin): anchored in block 958487 (2026-07-18T03:43:59Z), 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/GBYEY1100073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6ebd5ca9adb74d0a88ab15175b5da0c7786c5a2c36ccd541601596129ffe9e5. 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/GBYEY1100074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x464c221fa79d7d3a9f337e4268eaf194eeffac8da83f9874c3521b22a6e06873. 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/GBCJY1900211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89d0e78f98081917ac934af16f261c27ed338ceeefa47256c67eaae437e8d0a1. 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/GBCJY2000413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd1d47beebe8381823279517d872b654052d63b466e3bf78503901a5da94a37f. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/GBCJY2200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2cadb3d6f8949cceb0de0b573db083230f87a823d30c04fa624db0a9b6caad5. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/GBCJY2200173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50886ce55bc37938c0bfb17f560d24adbf2eb97bdb82ffa6e5b8935fc8a572b5. 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/GBCJY2200177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x174b9f9dd630f8cf74cd20186effc412277cff0ab2a9c9c47bf50e4544fd53ee. 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/GBCJY2200180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa53c747cf411b64e7abbeb555b6bf6aa370c5ef427bd64fa17c7eb4a3c3f9714. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/GBCJY2200181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a8d5f2028757012a30acbdddea041ef515e62d3e9a5e54133ff544bba2de47f. 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/GBCJY2200184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb119843efb19b371abe76217f745ddb70bd61da69d704f54171db99f7684e7cb. 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/GBCJY2200185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6da5be947efa8b5f74e0aac3ded15c4c06536495a01d2f3e1e3ab5f8c233a651. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:22:10Z), 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/GBCJY2200212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb8ba8f14d850564b238da57fd9b751acad1d4602aacc31352853e42e1eb16f9. 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/GB2LD2510251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31728c09630584e2a7d6d244625606867871123507d80b57222181255b312b75. 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/GBEWA2206250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14e790753c03f972f850942d15ee482710acb82dbd002795912658d27b01d4cb. 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/GB2LD2410554.
Anasthasia - Blame Remix / Camargue - Fred V & Grafix Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eb3f8c71fa958836ef72ea16cd81bbf2210f8438cf095a2982b32bfb844608b. 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/NLCK41012412.
Don't Look Down (feat. Natalie Shay) - Grafix Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa91a5c14d1bbbf3b069fbfaf09ad10d4ca4dc2442f4f62ff58a1d78a332347a. 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/GBEWA2206290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa91a5c14d1bbbf3b069fbfaf09ad10d4ca4dc2442f4f62ff58a1d78a332347a. 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/GBEWA2206290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x234d9bcdac40eaef53594f226f06e55c1b1d8b20a5f6937fe5875c7d7ffa480c. 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/GBUM72306826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51b4f4c13389243c3a612192e787f9f56f8eaa8856e902fdc83b806d53d343ec. 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/NLRD52355083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aa1c327f2c580ee590bd9d80eaec20e417b0ff21f72df67398606b01adbe70e. 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/ATME81100201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f7d2f387d7222fd859089ecf872e59d2565ca5179a7525126ef7a7dccfbcabf. 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/US38Y2421379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62d37337c935fe5bd1e4a5e4fa1aabe1aee9b996b0de25da57e62a8722136cbd. 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/GBCJY2000000.