1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xbc0c0f089533328b13d98ff79b6b349d633f832c0568a44521dde492e12e2eb5. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ba25f447-d087-4a51-8bc7-3b58ff2baa92.json and https://artists.proofprofile.net/proofs/artist/ba25f447-d087-4a51-8bc7-3b58ff2baa92.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 → block OTSBitcoinBlock must exist at that height 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 0xee086dfd90e6166ea109d3c80eb7d6ca889389fcc93e9d8d46e79f95d682a7b0. 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/ATDQ92496003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c88b1097030a513af62c12a34a1d0d81fe93609b9683bb5378ecdc12d2938b1. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ATAL32400202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbac3360655be8be009d4063eb3bf9101a4cdb8925d1cf560905e728673d6e123. 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/QZNWV2456524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35048d9fce6625792b6bcd32718f7d882341ef526c1f5f118ed165a86d3e80ef. 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/QZFZ22460243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4cbd51ed26b173345e99eb27b7cde7fe13599d8ee045ad2d9e377c315e874ec. 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/ATT802315001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc513477e2f8c0dcaa43764e243cbcbcd867f2f7c8474a6437d9c29b81f592f9b. 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/ATT802312001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcec06b45398cf1f51a0c9b70cd196d83f72f60c0a4071999b34a5b0d7be8228. 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/ATT802310001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3382711bacdb33a44fa9c44b52b4a8107de9584d517534512f77d263c8b1b45b. 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/ATT802305001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79f8a8cc8ea42c38f31db98a659d2a33bd0f48c90e476f4516b1630acd4af4aa. 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/DEAL31800501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93065d3112751c00df62282046cb9b957839f6dbda94dfbfe831751dbf88dde7. 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/DEAL31800443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22336ef6048163917be70e0f024e7022938b05c85e483231dc49d09ac142bb2b. 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/DEAL31800357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0eb9b827540b7740f0e12d6236dfe57966dbd152f7d75bd5aba38a333423fa2. 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/TCAEO1968325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x349224aad0dd7a0d2f16f80c40191835d22dbc8feb9b6945f1e10a6bda5a3b64. 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/TCAEO1972002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb76d63a7ca0e87bbc52ac6afcc8a546d37b8ebee44e6b39f5d9d9ffeaab834b2. 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/TCAEO1968280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fec75bc2a952d9bfd0394e02c984febb6ee2a760cd345239d51210dfa2b50a4. 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/TCAEO1972014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30b8102cfc194c75201853c5a055d25984c682653acb47362c8f3c6b8c93d8b9. 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/TCAEO1971991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae256cb6eefc691a3119ec7dc524e63f3418babbb95063c27b99b9dd10c7da7a. 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/TCAEO1972075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x551b8e749fab7393319fe005c1c5c4e874c279afe550eb2f007a0dd9b7a6e768. 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/TCAEO1971995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b01f12a373c6ba9df33920680ea19bfaf3d9cf42a9dfd93ec7b578eecb91b3f. 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/TCAEO1968394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabef526f42c4b409f66ed7c66925832170e4bb208ca8e327e1aa8d6cf32d832c. 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/ATKK11100084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3055351a53795537979837b58d4ea7064efe550a7833c6a21c2612da3773632d. 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/ATKK11100079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f161756a9f4c94b6ac20a5a8a9b6dac3790e65cbd034d90aa5fd7472ce8077a. 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/ATKK11100060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ed21e34ac604fe1672110640b7aed8235bb356b77c9a158a63ad7a075dbe9ea. 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/ATKK11100085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07cebc7302bfbb8deb7a92284f614eefbd67987a77bd9c8d4aaca9685da9df46. 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/ATKK11100082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x486ba03753661ee3a736b99245ee1f40d734c34410c5a5765bd158f5d9e6ffd9. 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/ATKK11100083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf12b50ebdc39c0f4afc06b829d1e5ba49923d9dcc245f40a2802b9ca0ba82d0. 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/ATKK11100087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x916905f3bdc3039259b5fb85de930b215c0c28677c64f26c16faadb09fb23979. 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/ATKK11100071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x673f65d4049965f5165fe38979cc36eac6edad4cf5b707569508610914545805. 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/TCAFO2196003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79289b371ed92d142bfada4aff10830e0cb6a918042a3645dab5f30d3f9d7283. 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/TCAFO2196009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21e14b66cce3b8fc23b365a2d600ddad62ab965384fead842509f0fcc319c8e4. 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/TCAFO2196014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d3c38250d6e0d5002b8c5ff1d89e474d8fbbfbe96154290ff1b66b2c3a0f9ef. 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/TCAFO2196023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf0416c9a67806617a6c3028d38b9279cae008096486718949bb6423069783a3. 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/TCAFO2196044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe067b3886092918d00ef8c244c87241be004dfe4901913bb4b2d9455adb469f. 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/TCAFO2196065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25c5232303a27b898f475fc4e538e40eb78168427390576abdc90bf7fad5bb9f. 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/QZK6L2261223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf6d431a03de6afafdd7a97e3de45fd2fd305b6374facafd58a7b57f43d4e6e5. 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/QZSYP2345189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed95ea537e5b39427087f9e751ef5d67ebfbda71cdab8ceba190cb09e07720b8. 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/QZS7J2331732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x229969062c302b6e1c3832ba6f9b20c1f23c9e631ab4ce0304b474394ef40977. 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/TCAFD2073958.
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