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 0xc8873eb50a7f899c2dd4d21c6067b3875467fc172158fb16de5bcfc26df97ca9. 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/6799fd14-db35-4771-8aa1-3d6805ef81d4.json and https://artists.proofprofile.net/proofs/artist/6799fd14-db35-4771-8aa1-3d6805ef81d4.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 0x862796099fa5f2a6761310634c3c158a05722b0bc416c7c61e805be12b4f7d5c. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/GB8KE2328757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8a835e9136d5bc6378e9815fe98ef8fd5c2c48c5db5f3fdc373f17fc6a34744. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/GB8KE2328758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73fcfc3af751d2c0ffd5bc5138790b76204c98d8e9b472479a0dc8ad309b315c. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/GB8KE2427034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35c0481d35512b17dcc84f88affabdc7312a15058756fb496e966b8210622f3f. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/NLCK42501436.
Bring The Vibe - The Freestylers & Lady Waks Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6210acbd9eadb0e9f70a97acb9982a6a4095e95a8ac29b5e69145573e4bbf57. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/GBKQU2035197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46154d4855fde27e7ccbf642a4e427980eafa9f04fa5ef66680da3c5bc8416b9. 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/GB8KE2423922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47546013059a0ac95e147b61f00d438f025140b733a0912811f4e9464565cdbe. 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/GB8KE2423934.
Neuropunk Records Showcase by Bes vol 3 (DJ Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb0436a32f329aa2cb239f5cccdd482aba02736287c9ce336252156b1561a11b. 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/GB8KE2321650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f3d228a30a8679189cba6729c7506b90404f1c0c230f8726f2065ba42b2b34d. 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/GB8KE2321671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf140f87f07d8ea0790e79f90d3f9d64ba36cc68990cb14bb9a3e845bfa41a1fd. 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/GB8KE2513321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2137fb4b16319f008d97ff2d1e219b88e821724c6a67cff38cfd51ef525392ca. 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/GB8KE2513330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9be65965195adde111c8b58fed119bd1debd91e7f5282509ca579e80e166824c. 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/GB8KE2513340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc14b7d4488fdbb4392078e93659b7cfd0348a687cd1a973882cbc90193400833. 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/GB8KE2513342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d73c9b55233ba462640115a0a3fa02db50f3f465f47aee498f47658fcf44543. 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/GB8KE2513345.