Chaozz is a Czech hip-hop group active from 1995 to 2002, during which time they released four studio albums. They reformed in 2017 and have since published one single. History Chaozz was formed in 1
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d1cbd261ceaba81a898a7bc60b4a99184ea0fba690c2e1ba7b2a0d25dee20c3. 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/ad0e96cb-b9ab-4943-a84f-4dc6dd707672.json and https://artists.proofprofile.net/proofs/artist/ad0e96cb-b9ab-4943-a84f-4dc6dd707672.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x933de7184465cb8d7de9db8e408f1d9311d832038d2ee478ec6725c11acb070c. 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/CZA100308271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e44e05613d33272a7368b39b6536b795edf56d2549b085251ce41458c694fce. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/CZA100308272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x960551ba137b7f1c197e71527ca1b68f3e28ebcf19c88e4bd3c92ded640a8fb4. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/CZA100308277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc19e243774f4285b7dea0a2185512c8c357104e4b7f39875b3de223c3a82ffe0. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/CZA100308280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd99bf476b0482f09e50f88c19dbbbd48414056ad1e7c86cd6fd9d0d235923cbc. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T02:17:18Z), 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/CZA100308281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36991bddfb8eec5915ac2f6278d4712018a2e5d14d83bbfd1d025ae8ca10c419. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T19:02:47Z), 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/CZA100400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64706fcfab5b3218a081f12677b945b7b93d08f330971b870f55f9fb021d869b. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:32:08Z), 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/CZA100400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6244f10edf0ee3353f9d90eed916f9246ebe9ea4dc56f493959eafc96095d87f. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T18:37:04Z), 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/CZA100400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64a4ac0ff577a1e90d458e50a18cb7dff181fe8d139180a112f08a05dddf3a1b. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/CZA100400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76b63d18bab64f3b473dab7404584b07d261ba30db5d8a1cf1c59a17b5ad4456. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/CZA100400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c12a742ed0696706524c7e4f9ef1f577f11c405b89c1d6698eb94f780ea62bb. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:24:26Z), 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/CZA109901015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd415a6b2c19921df766f7667a5840aad615f6be40228c4b8a173a808d986b0ab. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:54:26Z), 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/CZA109901016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b4515225d667b9484ab80e94cf3b96dbd52ba46e75d518e6e8b8ce1719fe7ce. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T07:20:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA109901019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b3be59a7ac5120b6292e8209a0fcadcb528360eaa3a1ec3eac33cf3af88f3eb. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/CZA109901020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84463cdd1aee235f734ff9cad1165f8aabc3d84ae0f0c482ccf9652db6dc1c0a. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/CZA109901021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfda39fc2337289dddca4807a4df51a6677ddaf80c3c78d56b8e1e2c8e846c485. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/CZA109901023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6deba0ce88a625549d55979768b46fd1a56e29ae6e1045f675db18b6ddc29309. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/CZA109901026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9c50254b132777f9fc876fe2a27b4889730fc09c1f14df63f592daf3aa695d3. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/CZA100101004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x417e8c5fd8410a0bd80b06be875ea9e02fba0abb67302f7ec411550155f30db8. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/CZA100101005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f619777aaabeb6a16236fe957909ba66b48093c80f2274c2c3f859ae96cc359. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/CZA100101009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab08bd6e0a3432ecf0786fa5706d0cc3017ff491ca501cbe4fdaccb9d379cef5. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/CZA100101010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb23376678cf1086845c2ed04ce244e32bc8d43343d6d3ac14aaf460c83e56f9. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/CZA100101013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa83be026db13744c4b6d5e78e7871688d47dee48bdb9829461f782aa9211f481. 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/CZA100400091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f619777aaabeb6a16236fe957909ba66b48093c80f2274c2c3f859ae96cc359. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/CZA100101009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11564bfaeaf022d89ab97d6ce872d72551f172df39479a57bccf3466af7064e6. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:06:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA100308182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa41c6822a83616f59e8fc1fd631a226e0e0173cb770e526e3580eb8e47bdf621. 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/CZA100308274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6690188dba3dce1a835af07bb16409b2063a4e5a35d7e81405f619b2d03180e. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA100400017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89df64d82f067375817164ed1ef1183c70d810b7f53b9ac1985668b3e1616009. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/CZA100308273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb877ef90b86f563cb208edf71baffc35414ec28744fbdeb9d4a6964ffa738c0. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T23:07:51Z), 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/CZA100101003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6540dd5095a8561a9a9173dcc48406b260b57ff88330a4304a84ad792ec439b2. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/CZA100400090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe475599dbcd85fb3a35425a2cc3e507fa8f030bf5c06bea0006c3877ad0255f. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/CZA100308276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1934800f80dcd503b44def7840792809cfa8426fcab00669a15046c2cfce09a. 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/CZA100400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ad0bfa700fef8fa2b02ebe9b7b9b765e972efad83b3a9690624cb78ad5a0063. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA109901024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb666f7cbbdd73f9e8e5e935ab08c139c6656a86d84533f3f7a29cd8dc11da381. 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/CZA231900496.