Európa Kiadó is a Hungarian underground rock band formed in 1981 in Budapest from the members of the then freshly disbanded URH: László Kiss, András Salamon and lyricist-composer-guitarist-singer Jen
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 0x1ec6734a2cb6d40bf3b81c1fd92ce7c561fae2c3bcd6958e330a1cd7ed214952. Chain 2 (Bitcoin): anchored in block 953768 (2026-06-15T09:30:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bf5e31b3-76f7-4198-a9b1-cf2d6a552a6d.json and https://artists.proofprofile.net/proofs/artist/bf5e31b3-76f7-4198-a9b1-cf2d6a552a6d.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 0x69a23c6967f9097cd20b54429f61bc34abe68a0e40113e39c58b644bfb75495b. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/FRS182148092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca1cd270f77f5d448fd68cb6a504ad104349f2f52e2c0d651585ecec0353dbf1. 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/FRS182148103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65ca18fba56b4da8e23a0444a87183eeebf4c3c2aa5d50a1102613e29807bd9b. 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/FRS182148093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x091bad04753507bd33fc391cd09bf1967e7500d887653454c813e43ec8c36ab0. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/FRS182148104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa181bfa66c8f05408ed4596bdc1c81bd60904894040519ab436c8b8ea2755478. 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/FRS182148094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x921df6cf45565d2afec31ccb9f75f9be68a185630efad556f913641d24840667. 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/FRS182148105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x755952687fae01143ed6e8170573a5471be3e146799d3a2ea19a13867a9f4df1. 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/FRS182148106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x157b549a0c6550c506dff7bcedad3e0136c8ed5b52fe5983e4e4521fb1ecb07d. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/FRS182148095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f40aae601d6b3877bff5ffc7a3e2523e4c463c798695bf0bc0966f80bb81315. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/FRS182148096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc7d728029a8cddfacec50d775df2d3e467822219ebfbbdde1299f7f84bec97a. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/FRS182148108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc96d330ea66549c185efebacf780f88e27837937387e06362d925238178f585. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/FRS182148110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb447dd4b0b27bfc8ae0ad67359e2d6998115d63f25ffa29dcb3212f1c936598e. 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/FRS182148097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f149622be792d257d5d0fa0616ad6fe369051c5bdff1a6e67b90f3cd1409c13. 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/FRS182148112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6f2a393c5df999de52d516bcdb23f283320a5e48b38947d09aef796945faf02. 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/FRS182148098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfb9e395067803d1245747172db6e050f78cd8bb6343dc55ef987856d48c4e40. 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/FRS182148099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d65daf03cd44f38916adf53cb2ced1dc9a8216a899c7d73a756bba2eab76e21. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/FRS182148114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d0de17ba2e8f04e029eddbbdc1e8cb8336f2a7a1d2e09ca1d9b8541359c8be7. 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/FRS182148116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dae58a5ba92064491dc926292d37c9b24b33590be94c40d5b0d5ed4e68be917. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/FRS182148100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16e94a1a9f9e52af5be6801aafac773fa9541837cde8955dca3299c6cda2fbf8. 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/FRS182148101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc97b1c2d2cb84a52b093f4c6e5db760a4969c9b8a3b399271d423b30e17563ab. 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/FRS182148102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8bfcac25d8a54c26d62e45064dd922e34c0fbe30b412392f86ce4c4965ed11b. 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/HUA257106601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa41892d777caca847ed393dba908d91e2f4108ae01838a8f549623fbbf16f7b5. 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/HUA257106602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ca938c276dc6ba079fffb621e2c9602400a393d43bdcec4d89374a58132de07. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/HUA257106603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccee3922102871d7a6c8858147da704d3d0431f9a0d2d2152408073ed5a90abc. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/HUA257106604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aae2b92810e52c6ac5165c3bf045a342306b81133141573b6dbf3377c7390f4. 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/HUA257106605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ff12233c522ee5abed839104c5d99ef0804d3c5667633cbc6d26ad868f1444a. 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/HUA257106609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a302c4ba3ea2df3117e5bdd237da5899dbe2ccdf2bfa29540f447799289f5d4. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/HUA257106612.
Európa Kiadó - Popzene / Szavazz rám! (A magyar popsztori sorozat)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8bfcac25d8a54c26d62e45064dd922e34c0fbe30b412392f86ce4c4965ed11b. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/HUA257106601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa41892d777caca847ed393dba908d91e2f4108ae01838a8f549623fbbf16f7b5. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/HUA257106602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccee3922102871d7a6c8858147da704d3d0431f9a0d2d2152408073ed5a90abc. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/HUA257106604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aae2b92810e52c6ac5165c3bf045a342306b81133141573b6dbf3377c7390f4. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/HUA257106605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a302c4ba3ea2df3117e5bdd237da5899dbe2ccdf2bfa29540f447799289f5d4. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/HUA257106612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc25e8289dc42e00da01c0f544cceba2c588dff6f8ea709211f69c0dcdfb8e4fb. 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/HUB281206505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2e0b9bc40f20155d55258cf231b24bbb104aa22093ddb474ea12de615d32e68. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/HUB281206507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa17a2cf7fe1bd987e80a8d23b6a4b1a8f03843b6d3095b2f33afad4b2a30e736. Chain 2 (Bitcoin): anchored in block 958656 (2026-07-19T04:04:08Z), 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/HUACH1600050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x922b6c1e5d16806adc895046e9a91e79fd2d5c4ebd1afb54ea40100247734380. 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/HUACH1800001.