thumb|220px|Grave at the Šárka Cemetery Josef Kemr (20 June 1922 – 15 January 1995) was a Czech actor. He starred in the 1969/1970 film Witchhammer under director Otakar Vávra. Selected filmography
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 0xe122626e4aa684e80604b37eaa36eee6aad92a4a1f64c42404dcfb3a1952e797. Chain 2 (Bitcoin): anchored in block 953694 (2026-06-14T21:38:09Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6dad875b-7720-48d4-88c0-c89eeee5175b.json and https://artists.proofprofile.net/proofs/artist/6dad875b-7720-48d4-88c0-c89eeee5175b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Růže pro princeznu a další pohádky o princeznách
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 0xec2916141c0da46cbba12ddaf41264e15dabbe8d5f57fa755906606a920ea4be. 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/CZA167400319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b4180a0998b0fbc193986c635fe0f5f60a040dc091931002f7becfc2a0a2b75. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/CZA169200537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd295eb8eb9378f98b1620961c91493f06cdedcfa50125228b4d734cccc37f7bd. Chain 2 (Bitcoin): anchored in block 960303 (2026-07-30T20:11:13Z), 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/CZA162100914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd6fbcbc3f0bbd89040054cbae68774580ad0d5d3660350e2b0a83b141aee709. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/CZA163348938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47ade435651fed8c1a29d40b988e5d36c93a9bb10a1d2b39b289c2c0a6ee0805. 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/CZA168800617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bb7e9c6ff7c15d71bddcadcd318fe10fe3e9dc415e0054d829c64bfe14e7093. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/CZA168800618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01c6729c9bd543ac15fed3d5b5832b82707f9ab9c35fc571e81f0cce762c6972. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/CZA168800619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd95c32910c5dbe18ec31cfc311638d3e7cc34e20ab10b000e168c54686844c07. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/CZA168700347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab91a87e9b147a501f9836b4a82fcc755723a6c5aa6591c269941c036ac73701. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/CZA168800620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb3314507f1f49c5171af68ed3c1517569eb292a19dbe08263d8a1c40f362b98. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/CZA168800621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea1c2b00a42315720e9f6a4621c2fc9d6b99f4ec3f7b723915f2db3679bbf7a7. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/CZA168800622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaebec7d8816d0821b3cf4e0bcad8e385d5e4cd0557e9ed43cf2d8df65f56dfa. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/CZA168800623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b89abb3de0cc71f27bb5f1a65442420d5e2ec539e68c243c2ec5dbb9d1cd634. 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/CZA168800624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8634726c56a7525b9f51e069a6db2f680868e295db026ae5a9b870cd9d5a848e. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/CZA168800625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc64242c87a964efe8fb4168cb9e0ceed23837aa2a727954f1f6426b729f7375c. 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/CZA168800626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2adaab9f8f22577ca31b4f437709168ec40f26eef8bd74fb971310aef635a220. 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/CZA168700348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb64393d59183f7e2957f204039132e3fa49d917d68139defaf6facb71f846939. 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/CZA161003794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4ca73fac27f347f61a48064e9093a6f0dae94fe8378b9e842bff3ce3bec5ae7. 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/CZA161101607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x749ecab2d7df3c0e3d1b2b83d7f8ba16f659e5996f8059339be29785c154a9c5. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/CZA161101604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x992c6f795861d52850873b55ae86dec3feb63c10552b6c067e096d0ce318d462. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/CZA168500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7882382d7e691474aaabd739ee6d08f731cdf546a3b83a76a3dfc4c16ab37fdc. 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/CZA161101601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02f77cfb66bfcc3832d2595e1b95987bde3867d032e8d434fa1940e4a236f138. 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/CZA168700340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa24042b218dfea580b31b9f580591fbb938f5b3081d6312459bfe065c0a6723a. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-07T12:58:18Z), 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/CZA168400029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32bfe39c5132dd6f75bc34dd75656d0b221608679be11b23a7838f1bd743cefc. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/CZA168400126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42b89d485668b0a6487aa5ec88cfa6f172deedddfbf7b02da01ee1a5a857efee. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/CZA169068998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x344a2099d0a8bf1143f2a34ea894ffda9c436d6611a5d887c7edbda10f740a42. 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/CZA168400243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10b02196c3df76e04b51f88aa1456f48d868deab94bdb9f3450964581f7d1da0. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/CZA541009411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9d163b7d9e7edbfbf0159ccb0e3ae64477898a917eb818cbee4882c4f445ece. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/CZA168900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b4b9bf3924051a6897cdec71292f061d5349f2b0231ad33a9435f182c494261. 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/CZA161543029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd49ce4f22a19f9ac38e1b7b9e756510a9cc69c21511837db4fad1a3282165886. 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/CZA168000343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83783e5dc66a4847f4e16d76963a917ce0006f8c135d27bb319ebe3e576004ad. 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/CZA169039998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d6147ce6062568b819ae631e89f883ddd910f9e16809025663f068ea4c73a41. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/CZA168300169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9b5aa66325e75cef3731442d0e3c4bfc43e2bf8ce2a591048a91a50fab65b34. 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/CZA540905407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcae89f2f248b42529934b6c2c46967b4b0777cef0b5e3aebc4831ceb76f9a577. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/CZA168400159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb17983b9368b111f98efb53f775331928a49745ecd2dc01bc6a97980e9b9fbba. 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/CZA169088997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x648a3a87505762e9063f53191f9a515dd2a50d310d7d8f18096c82081be2297b. 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/CZA168700099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fa3fa6f8f1e0e050c1e3c0ac7862b945e9f1eda21a5c8b77e4beb13aa9f75fc. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/CZA168400032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07ce2e1f0afd0c9de8dc3f9eb001d9ee056d98a76e1a062e99ca6ec48016fded. Chain 2 (Bitcoin): anchored in block 957057 (2026-07-07T15:21:38Z), 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/CZA168200453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6bbf1664695b727b3b4bfd03f69cd509e7553ba94ffe60df179a46ee140540a. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/CZA168200267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x372656bb012883d29fa5c07e6704892b0b4556829ce57db1b95a6356f505fdb4. 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/CZA161544061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ccabc54f09eb1d94368764bcfc52c74d0e48ea84ab4f8489c30cd750071b76d. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/CZA163354216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d5a78de3fc496f454b4a04400c89b0910aad86f9f522627d5fa9a6ebb7b3de5. 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/CZA163356100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f040af5cada1e66ddbaf09b9494b69b3f4b8bd377bec20ee6437a49705ead0c. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/CZA168300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb015dbb358e56711fd6ed1051a2a62170c74953febde66e1c27e3d08a06c5a21. 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/CZA168200105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78329217bb8baaa85e2ec0d4dfede84b75637c273d24910c54ddcb65899e75ea. Chain 2 (Bitcoin): anchored in block 960187 (2026-07-30T01:34:28Z), 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/CZA168400017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec08b2cdaefd45f47f8784fbeca3d08ea8e1383f343dc3e4c59ec8302eb76031. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/CZA161544056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb972a1c4d4eb7e3c3655dbfe4f801d6ea58f62b7787fb0a2c57358ec6538d6da. 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/CZA168200375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e4b95915510bb5cd452481d5c110f367ee8d4b9dcd4c11f8f542bedc91b532d. 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/CZA540904402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5869b783c2e011b8b5ef9d2fd0e72f6522f06565773724c6e843a3b7f67f3fe3. 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/CZA168700083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3d1e4d962c1a12e3a37c332358b4f8498791eadcf84541452fc6ebd380ee102. 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/CZA540468208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4dcc5ecae4f21f8dc2001a6c608be5e84b4cacfc610ee432cf87511a6a40154. 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/CZA168100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4d2245937753986113d4557c17813323d9cb01391176308c6f993b44fb6f9b9. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/CZA168700021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc9c60eb52180712be414f693814d0f55ee3c6a42d293838495b6b70b380c976. 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/CZA168900991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x013e3e498f85da54fd5f9d5ecd3c83f74b7c15caceef45763b112be302635f39. Chain 2 (Bitcoin): anchored in block 960384 (2026-07-31T09:54:03Z), 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/CZA168200106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77b6b8698e556e61d679a703ccb0e8dcc31fa4d008855c11dc9fd2d8b7729d2e. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/CZA169061997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd68bbd3976ca939ac30e7a3a7076b291901fab34e34c873a2a8a05100029895d. 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/CZA161003820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a84428497465285a0bd11ca5468f9c40c496df7f436b8a4783a9b82d9112016. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/CZA161544054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a49067d95c269c7df687d075b859efb695034fd487383060a667f24f3155af7. 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/CZA161340219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5fdbb651530c700f12f4ed056713dcd2cd12573f8a78287c4a153807ebb4943. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/CZA163356101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x244213304f70900789ccb5d736680754804227e5ce1f0ae515b88d7e8c123a0f. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/CZA163356102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2adaab9f8f22577ca31b4f437709168ec40f26eef8bd74fb971310aef635a220. 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/CZA168700348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47ade435651fed8c1a29d40b988e5d36c93a9bb10a1d2b39b289c2c0a6ee0805. 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/CZA168800617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb3314507f1f49c5171af68ed3c1517569eb292a19dbe08263d8a1c40f362b98. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/CZA168800621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdef88e13158f0eadda909f4255d94ec0d2a0c97792b64cb433c10944a1d42f6. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/CZA163354221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c60d4d64fb6a6d3cf893f05733ec52460169861404386359093b735cad97065. 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/CZA168600157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd07b9d84a1408bdca14bb52e58e04c6feeb272f8b1a24a72a6745e2a17b1103f. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/CZA540898702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad3320c5b917d70435e2dc824dcd8764119584a458a1dd4a0b194bea3ef03d6e. 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/CZA163356103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2be5277685c07a42fa3d5b14141b8e45a7d57e42f44ffc855f7af131900c04c6. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/CZA163356104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c7a7e3905143793285cd6c1d1eef13d71f71d355ff0011ba181613318c5cdf0. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/CZA163354214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6d4fe8bd855c4c199cd1b1deb149317f5ef29317f3e5c0f8f7e1b46b0a206e3. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/CZA540905406.
Nejvýznamnější Skladatelé České Populární Hudby Petr Hapka, Vol. 3 (1980-2003)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde744c36fb9ec1361aed1638bd85cd4e87e12dc88e049d819434cd438c149950. 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/CZA168000614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a646c3d22f2e84f4ece70ab15c572d56497c0ef5ed4fc88cbd64d81ae26afe2. 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/CZA168100101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf87b89a5ee504e3e0764e2a667f4445072257d1ae1fd5556a1757329c0be12c. 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/CZA168600186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1e55969b60b30e2af9935b6e48c779d63a5924a94a9775e5265b3af6296e006. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/CZA168700120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eabbc63e26a56c6fc1d36c9f6951ca9f0600b7994b9858b7d1abc1d877dcfb3. 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/CZA168700122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08cc7cf01bf8875cf80d65ab6d5eaa2e8602d1a87a7402eab766616e4ba3ed27. 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/CZA168700123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe172c61a7c9f98f102461187e20e07221d988cf3e1809509ee9bd3ac8e5fa0a9. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/CZA168600188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce942fc01b931ab203140f69b8bf2a3a6113ff3af2013bb5a69f1d7da69892f9. 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/CZA168700125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cfe367ecc9e3979c9412693c6822fa47b859f8d4a4ffd0b7b33a1d0d10fa5ac. 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/CZA168700128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78734c194ce7e7ab5c298bb1beb67c64dbb85d9b71db320f7e6dd8162876e056. 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/CZA168800302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7e7edd835a0be1269c5969f0fc51cfed49ee6f36d7dfdec13e80fcbd432f9a7. 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/CZA161541823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabf7a37c47ccb94c9cc185bb39d2bea9c870eece7de3760a9daae61b052d546b. 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/CZA168900067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8864d510435f1d2ca72f1af20a86061f5bdbd32939e2c5668878338969bb3198. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/CZA168900252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62e50dbdbe04389b74b92a93d0f51feaa7c465849d35783f21540e8ac2391553. 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/CZA168800088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fd2f96e5b91593f47eed03d92d67908ec6e37b70e389d3e651a23890106cdc3. 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/CZA168800084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c5b26dadd748f61d19d4849d347da94a4a1340ed6640bb639d4ec68df9989e0. 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/CZA168800573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55651656ebfd7ad6493f55a5a297cb5614d4096e01c1cec20d3d68dc74452fe8. 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/CZA168800574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27a59a6124aed66cdf00b52642ba41dafc62887711f28197cbe73ef8839edcd8. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/CZA161540464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf52ef9f4d25f18dfcc70a05fa477756a56b6fd4d1142aca0d90133306e8fba54. 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/CZA161003359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4d53965dd37ae8d1d83ac99d2bd52b184bf2b5de3fa85fe220838b57a63a7b6. 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/CZA110210010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1242101f2687f7aa726845ad747669bbb23233ae0eb9b98e3eaca028fa822d4. 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/CZA110102008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd40d5754d2f495072adfab788a52d3d7d19728aa5789b5d90aee16ce440f622b. 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/CZA161102086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30e94f5c0d8ee9ac2e199608eed6a0f141ff40ddf5fde91b1d12013dac5f4b45. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/CZA161300807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72263d0fed7bb311926f33d472dea6076fc892e13881c48293b1743d37438935. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/CZA161100522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e8b76242305d2054db38094c934d6e4bfa4db5d5d64c9f0687754f0d51b249c. 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/CZA161300784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfadc6bc868f2010423863081ef0258e6befcfe15ec0e401a7af310aa29355e88. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/CZA161204646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfbbb006b372a03128f9ffd6c429541d6fc522915751c37f2f113f3946536f41. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/CZA161300808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02b7ecac37c8c3c4f6cde488602c9bb2518c6826421bb3b57ee55f067a7366d5. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/CZA161300809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a014033bd042d7e986fe93e5cca62c5af7195b542b8e85f7df9ecb3b925752f. 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/CZA161300788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c919fd5187de3bf60cfc4d059f720c7bb689f2ef6e8931da58ae7e7cc8196db. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/CZA161401020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6b100d5f7461de0284112a4583bdecfda68c2063fca0efa9d4fb7cefc6bada9. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/CZA168800595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2865560a2910809d50748efce1b9ebb36248fa62c16d4a864b0311cf2dcf1368. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-07T12:58:18Z), 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/CZA168800592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd537b414ae92bc97b805982375692b70ae96994405f2f27c7cf2cf136cbac963. 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/CZA168800596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e4da1fdd525b547b852c7a86f7759dcaa1302ce1a6c2e7c1cd0c55f8bdda988. 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/CZA168700065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fa6edf887cc64d4e2596b63ffc0175c9b02bc9ee324ca5105640dfb71f4346c. 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/CZA168700066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x488ebdf15c8ce0854518dbd85d27d890c99cb5c449df3ca80a678b3c6b12784d. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/CZA168700069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf0d562ed6b7f9af480b22bf17b404f6a99eb11aabd1835a531fe65494817e74. 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/CZA168700073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e96fffe26a0c92cdf7b40a24825e00ca127965c74ed0b93c463d8368c1fc6d5. 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/CZA169700460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91b43b6ccce62fa49d7f1149081200968f324d6461c582543a962342925b31cc. 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/CZA168900373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62e50dbdbe04389b74b92a93d0f51feaa7c465849d35783f21540e8ac2391553. 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/CZA168800088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fd2f96e5b91593f47eed03d92d67908ec6e37b70e389d3e651a23890106cdc3. 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/CZA168800084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x273c95dd38b34664e63ed048244ea7e76e1e1a1067dbefd72e2783c84967e6af. 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/CZA168800086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x732f1a46af732b4b64c119521839a6ac271f87e29fb40dc63e8c3fd1548d8f6c. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/CZA168800779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1aaa0bacf98256767b83c08dc74b446518387306ebf7814e38bdd4db60e4102. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/CZA168800841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a65b523fc5862c45a68334bcc4fbb49eaeadfdc3834a007c8955c1047b714f9. 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/CZA140200308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81606d1dce9a77b2514899f158d141e9bc4c5d0b2d99b33c804e65755ef3e347. 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/CZA140200307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5914c302c809a2414e10019f20201b2c199c40125801fccfd08b5d2e6fc430fb. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/CZH931300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd94cd3e0331add9ff1ae28d9c7fb83588b891184640af61d3f30d900c1146e10. 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/CZA168500067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a08989b10872cdbe1e45c809d75bd770c692e3c496800958038f8698247f13c. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/CZA161441697.