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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf88108e23d14a662d1195df1dfca9611b4f4576f738df5876e3e2d64c4e27662. 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/36d5540f-0458-4a57-876b-b04ddced0b3f.json and https://artists.proofprofile.net/proofs/artist/36d5540f-0458-4a57-876b-b04ddced0b3f.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x054732d39c2cd7afc688205b9a2526220c7bf4eae4abbd47938888064be81d21. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/NLX1P1800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90e7579137e9f76d9ab2481854300958dc3528972072855f7348c1cde04177eb. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZES51855704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d98b963f6ea8d398f9e588085b8305dfa5a86abefafca252adc8e84a8a009a2. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/NLMU21900075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb22e22ca74550d914674172d7277de8633d54f31ee7333af63fc9c0652888cea. 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/NLX1P1900012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0c8e75cf8634fa446295098367638cb01f5522a436b0c05ed3cab77c785276e. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/NLX1P1900013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc26b99f658d7e506f9a9f300ed6d8a50c1279df163c51785d475aab07674321. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:43:26Z), 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/NLX1P1900011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa439647b5612a4650ccb36acb00f002be4cf035064d00ef04658f8cad6f226e0. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/NLX1P2000018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d06feeb43dc62b07bc034651d58d1d52acc935124d86fd878b05240dcf55ff7. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/NLX1P2000020.
Je Vais Vite (op de Campingdisco) [Lady Bee Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fb9aa96f9d63bbc592f543414513252a679cb1fa6547700d041e647384704c1. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:58:27Z), 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/NLUM72101050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b8bb6db213a8790b320030a9eccdbe6020e3115b5a47217aa96200a6378d57d. 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/NLUM72101046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf866102adff99c338e0e18a34c0b96bb1398b6b800d63532d18f6b7285b69cb. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/NLUM72101049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c6a6f001d4af0edd5c1a95222e71fb01cdad01548a04925ecd730531fe4d814. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/NLUM72101053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24fbd7070133d596a43c3145a186f03dfad412c369a15abd1de99e7d1fd51b69. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/NLUM72101054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb35190181e3475b7cc019553f5dda8a1a52f9d32db7ba5bd44de93870e7ccce3. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/NLUM72101056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf148897a2a4433b0607afcba9d9a7f54cbb05453817fe829674060c3b276af9e. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/NLX1P2000022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9eb82ff0a6611b81322cca8bcea7b15147944261eb305c158dde337ab395d98. 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/NLX1P2000021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5e4eabd2ab50e821e82e7e6cb3cace7962287532b14f4cd1a3e95866b65ac11. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T16:31:24Z), 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/NLX1P2300023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x052c8100224d7d57ec0ff945f3a7ad8af8a697674582428c9cfa48b0245bd676. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:41:52Z), 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/NLX1P2400030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c9cbb27054ad160e99d82b217d97ccfa3a8a4b5c03a1b0ac4794f9d2469fd1c. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:58:31Z), 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/NLX1P2400031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc99834c65d1e6c6caa7e87d8574b2fce0b73291b61646844725613be1aa4fc08. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/NLX1P2400032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93b66e1a8ab4939b595e83a0f6615289fb8560ad1042e56a08d5b70ee0fa961d. 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/NLC242100750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a0f62828acd24cd321599835518ec75f636bdeff0fd2a1302e58d004000eec0. 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/NLC242100749.