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 0xf7b8929fe53a3bfdfea17bcdac35fb2d899d5b5e780cd24c6f98712e467d3c84. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/44e5bc18-2822-43ce-8a92-27087043da8e.json and https://artists.proofprofile.net/proofs/artist/44e5bc18-2822-43ce-8a92-27087043da8e.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 0x6a4287c1ff749512f6b85342f2916ff9cd6c83959518e96ffa737301cf1d3ec9. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/FR26V1528432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7753fa9d276c4a0dffe328a559e71ef13b594cd11d53a4e2d81f55b9cab0069b. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/FR26V1528433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcba65343f04875f8dc1de1c8175dec90e51665fe726b7095b85e8d7b697feba. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/CLEA21800838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20f253d1a0b0957d8e8f1ac797ca99f4bbae760447963315574216e22f9a5fdb. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T19:03:32Z), 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/CLEA21800847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x063506d60fd02e91d56ad9fd2793eb0d7b9f9b0efaeef65abe24b0886c4c8a27. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/CLEA21800849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a7c83c83435557a72f8a48215995f128c046052d918218db77c35fa4142bd9a. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:16:53Z), 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/QZGLM1913302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f7b87c9add73956af06576714c3f6bf317e78fb5da3dca933ce87cb908f1135. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZHZ62069802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4261763e95fc2d5452e6bad69d3caae8b9da1a82ee6a5d07dfc7ce7e30411e5e. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ES71G2140268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44929d1a5ed7938bb40c5ec1a9ad9c1c85520abe59411ff8ec142cc4a260e0dc. 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/CLLH21601524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda6ec5f12288cdc6b8c19568b05365853e8dc24ba2c0295db38d580bd1660927. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-19T22:34:54Z), 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/ES71G2203187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5564cad6c7c64086788fdbd39eb281671537e49c139a37234c93cfa0756a4a98. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/ES71G2210681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc6d22076629b4086636b509bf63546487ef24ada78d274184264bb3fc4f8e41. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ES71G2219342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f7b187fb48cdee94ac0ba77ead09a42c1010e38ef9e4ff37b5eab9cec42813a. 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/QMFME2015426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0447533df8c41cc46f9fd23054c82c8c4adc97b2584b3c67e1961e827381790c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ES71G2219341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x117d0b975e6d544511dfb37bc1772f8565e22d80db4477fa4bd2edb6055ebabe. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QM6MZ2124685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc6d22076629b4086636b509bf63546487ef24ada78d274184264bb3fc4f8e41. 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/ES71G2219342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x579732b06a21a51b756dc2a390091404727a2e36c8cd9648c27a1d2beeb90146. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/ES71G2219343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4261763e95fc2d5452e6bad69d3caae8b9da1a82ee6a5d07dfc7ce7e30411e5e. 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/ES71G2140268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca9af34eb17b4e12e1806f2976048c3fe1d478e92a20e57918f1ce677ddaf149. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ES71G2219344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5564cad6c7c64086788fdbd39eb281671537e49c139a37234c93cfa0756a4a98. 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/ES71G2210681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5564cad6c7c64086788fdbd39eb281671537e49c139a37234c93cfa0756a4a98. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/ES71G2210681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa23e6b5c923dbf88e3db799a0fda65807a011f16d7d6da41fc83882cdc7d1777. 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/ES71G2406265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2822a10e1a4a64da3fde26a5a8f918e389c496a02430a2389caff67a18ba44f0. 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/ES71G2428230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f4e22e8700a6a79fae3b9f1bbc23c7a82e5262471804ab99d47c067d99c084f. Chain 2 (Bitcoin): anchored in block 958585 (2026-07-18T17:05:16Z), 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/QM7282504602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13a4125e012897d89e1593d822e789d3d47ae25d1aa414984bacc5f1c6133602. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QM4TW2192740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3655f3e71d230b265f1fd5cba0bc29b5afe295ad8b43811fdf66b27d28c36db. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:58:04Z), 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/QM7282502950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa96b116d21097d02cd5b8ccb175d9a3ed34ae28c1931fb83514ceeb71f7a70c. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QMDA62515257.
Valparaíso (En Vivo Teatro de Viña del Mar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef8c2d5d7625fe220fbe7616759cb62826fab0d550ff09e6163ee3341ddc8262. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/CLKT22103664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc09b563e1f83f0f6b29f096fa3986e0d66e800cf593b3123d05a9a189fe1fc07. 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/QM6P41766242.