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 0x310e3eece03fcee215ed99d1f4ff687952929c287ca242867d18228387b86dee. 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/c04024a5-c630-4b9d-9ad6-5ec6b02eb4e4.json and https://artists.proofprofile.net/proofs/artist/c04024a5-c630-4b9d-9ad6-5ec6b02eb4e4.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 0xb6eb533284090fc25b2c25e518d631942159e1f60a37a6b8495be3c4bdc4b801. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-21T22:44:10Z), 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/QZDA62491983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb63d5b704b196a5fc3cf519946a73210be229f8678922a8594c6198528c6fc5b. 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/QZDA62491984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f1270fe7ccefe8220cb5d917705de065adf36b56c1a424d782a54545486623f. 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/QZDA62491987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2e541b67b22bcc84796a482edaa252a208c99b877f4203af28a11c971853b00. 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/QZDA62491988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc742d33f77b976bc0cff0a1935a19cfabad35b8a82a6b497c1e9bafd3732d733. 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/DGA052450982.
Technology Is Not Your Enemy (Blaame Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x847132870cdd861a6344f4d234b6ca3e65274c0bc74077f1df1c80a9ccba3601. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZS662439350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f122c3527dab4d15139f126d84d235103923b0a717a71ad6143e4a86c5829da. 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/CA5KR2441668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50496772289c08a53667ee8fcb9c5728f6fcb3fd0214a7160bf5327181a5641e. 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/NLCK42402049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59d4916bb38643b677be9314e77c1dbd98e6744b070562ba8aa177a8c4d90931. 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/NLCK42402050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x987c43c2165b2753bba65d91b9821deb52550a65531e8f497e3b6d18fc4f8576. 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/NLCK42402053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95953773e0aa46ffd3b9c0154a23b9a0080873f90ed8c38a1fb803036a235718. 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/CA5KR2418736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3f3fcfa476a91b837773b852f20209f0654456172a2ac6748394978c6d4603e. 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/QZTB42384557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a47725049d836989164736d974b06c6462ec275e722969273ffe9115c77b490. 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/CA5KR2361670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1edc16872675c0abcd9a2e0c4cb2bf93ed04403f3103cafb30e3c9013686722f. 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/FXQ692200263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ccd0b9edd8260f0492e0ae6f0b76b6d41b79e98374b28b5f4d9dfb94051a70a. 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/NLCK42214976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd75321693ce68bc8ad01ba6cfb85bd0bd3e64bafdb11b3b2123255bb9846e926. 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/NLCK42214978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86ad040c8f7ed18b015b94ef75ced1d61882d705a4d7b1c8b58956c1b3cc2741. 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/NLCK42214979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe64ca07dcf9b22efb46dc4b3d66442e286a04fa0d4e8eacb4513ef6e33c30eb2. 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/FRDX62204210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc287017b2a7c52702ee77bf3b638d29386c8a231df21366e1e4ad002990e4e1. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZHNB2398621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1df4548a5fcd939fb1af65d2d3f3ca38fd94eb905de3031f29d7f48a3ff6e01d. 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/QZNWQ2133790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb841a9f65cb3bc7201b08f027aee665157c67b5427bad30e3bdc876f28b4c2c0. 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/QZK6F2144506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd4c8b2fb155f81287920e6e80f064b804b1a84f4cb63cedd4a0874dae73c3ce. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZK6P2169850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11c0ef43baba7a55b0812ad531f47c6d0636167371dc9277657591e225e77c35. Chain 2 (Bitcoin): anchored in block 957246 (2026-07-09T01:49:50Z), 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/QZNWW2095197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e26660d2209a67509bf9bd3cdf200dff0d8394eb169571a17dff0d9ba03e20e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZK6N2128403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6467de91f3f27698c6cee23c403629856eb66c4ba1ee1283ee0cafa552787ad9. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZK6N2128399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc563dc5eb1c7ce9535270f387956dc3113b4355740434b8814d90b8912f32f00. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USL4Q2240249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeea1054bc7bc392064abc1ea2b5e07b536f2b55c238689a118dfc6368dc3016c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USL4Q2240251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb6bf63c71ba31fd1beb3f18a5593bd559e8ee3160deb7d0d20ffa205cb8556e. 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/USL4Q2240253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d8869a8fbf01bb45892b6df0cd9d3c45b40f524b8c39bdc55d6f9932dd365ec. 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/QZK6N2261010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4b8639b28098d70e5431c9cfc5839679c49c38cea3394318f2c8edf5226cdc4. 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/QZK6N2261013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34c2c30941d93892fa06af02f929d0488b6773f184ee9de9418566503651e1d0. 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/CA5KR2305989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9546f18cdf6d77aef6408d75b16fdf8e470ac0955b691ffd6e54d476344dadf1. 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/CA5KR2305990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd526205fdcf931ff4336a568357c48e056b9d681d636d9596b3fba11b14a21ba. 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/CAGOO2217107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19f94d70531592047a770f99c61942acec7e9a3e8b6aac4cd4d39644733f32cc. 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/QZJRC2257681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0dadfcce3580889b71d172ec21817c5db76c34d1b707a64e221228f770cb6fb. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLCK42220279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa308875f3500ff9abe8ac8089ad9dee58506328e0a094645d0840fcba0956e0b. 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/NLCK42220284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa254e3e0785409b64c78ed6c0eb923b710e80213490e403ee3102f66f42449e4. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLCK42220286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b13518f6622da5469761527ca2b75fe6c90c6e69a968283bad933b2ee2d5919. 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/NLCK41095771.