Michal Prokop (born 1 April 1981 in Prague) is a Czech professional BMX and Mountain Bike Four-cross rider. Started his sporting career at the age of five, Prokop has claimed two World Cup circuit gol
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 0xe737297f6887e93659af05318679172ad76481eb8cf99caa7419e4669df6661b. 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/57232fda-f95f-4729-b223-7c73460a0516.json and https://artists.proofprofile.net/proofs/artist/57232fda-f95f-4729-b223-7c73460a0516.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 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 0xb48bf2ba74115981671097252f40af93b494345307d9172150f46d34ac041d00. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/CZA167100022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59d3e406e3a56bb0d018cfd075628c54e3f9c4c1c1fb801054764265e4e525fa. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/CZA168000641.
Blues O Víkendu, Od Kterého Jsem Si Tolik Sliboval
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x295bea2444664f156b94832a7c46cc0e97b3bcc4268ad2c60a4376cafced224c. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T02:17:57Z), 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/CZA168000642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x872b771ae6f7e3215725175faa8cfed5660ceb26a84ee84fed1f39f965afa256. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-21T22:00:50Z), 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/CZA168000643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59965ad11d398e54c69f35e2f5960fc503cb8472672668ce8bb2d813be208503. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/CZA168400604.
Kolej Yesterday (Jubilejní Edice 1984-2014)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36778f4800d9c43c22bb6b32e39d96282d8abffb222e88ae1ad5573033e585f7. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/CZA168746999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91bf532b2f4d54640baf72ecb71e00ef447efa719b743a6281f0d6a844251052. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168733999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40b9ebf1a81f3eae5c14db2e450e8bd3033791c6ae1eba4867fdae8c3037205b. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/CZA168900411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee01c8a64895aee76d84efa7f9cb8ca688c9e362648750abe79f1bf21290a02a. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZI291200004.
Kolej Yesterday (30th Anniversary Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5fdc43a6d4f65b84aa88b9f90e45dd4f251f640bc17c8eef1ecd1ca2eb59ac9. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T15:22:45Z), 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/CZA162100036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb46d9af28f8a1a12bf83515b523708d96abc374d38030ecfdae942bb3e3d6dc9. Chain 2 (Bitcoin): anchored in block 958667 (2026-07-19T05:04:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA162100025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff093f3b98e600776a416083e14cc3f57cc94f7c228ecf98382688ae3e44ae07. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/CZA162100027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31760b9c0cd216d90f3faa920c509f44f79c82820d6a3646db1d64a8d77abb22. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/CZA162100028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36d67ec9c3d28e9c51d7317d3a49881bc9c5598c3e92e5567f3398e64052d01a. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/CZA162100032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c53eaeacbeaac576f1456dff004b3bcb50da87be2a05f060f24e8384331cdea. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA162100033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8699b56e06edceb54d58749c75d27960fbcbb55be8a0c40cd8b254842bb92cf. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/CZA162100034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ca4bad1c53787840bd7e7ae691c3e291c22819027bd59ae74ab751aff2ca61d. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/CZA168400610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ab239ee43e4c72566a3d6470524eb8e1b53c3d838054a6936ff2929fdda91d4. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/CZA162401986.
Ahoj, Tvůj Petr Vzpomínka Na Petra Nováka (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb756c56529cb96da7e4f8814c180d2f0da5d4803ba7586c0594040530bcc0270. 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/CZA160600044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc635a83830131914bba61cf2ded2a2991556958e8baea54fa4be6a4d3879f673. 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/CZA166900857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x116dcc789cdd9c7293c3535eacf4bf9cfbd7ab97b8aeff9013cd7ed75dc1f26d. 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/CZA166900856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde0c6fae2d24cd0f7414dcfbd37903d2820b12f534d6217f5cc705bf4c6259f4. 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/CZA166900865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d5f59bf7535cea8452a1b71c6e7df636f4d3cfb4f943647ec40a91310837f6f. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/CZA168400605.