Levente Gyöngyösi (born 1975, Cluj-Napoca, Romania) is a Romanian-born Hungarian composer. He moved to Hungary in 1989, when he was 14.Kontrapunkt bio Works, editions and recordings Opera A gólyakal
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 0x98d5c1f641a7ee5ff6b4415327bbbe447ecc5176a6db0ecab69a634e4e278740. 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/7054d1e0-8e38-466e-8d12-1b240ecca276.json and https://artists.proofprofile.net/proofs/artist/7054d1e0-8e38-466e-8d12-1b240ecca276.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 0x092d69f4c815ac33504e7b146b9488c94329fdd5ca86053149d10cbf7b25799e. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/CAENV2110185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb104b8d68a28de424225eebcc888000888fdf72ed74e9dff195e76a11e7f0d7. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/CAENV2110181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabd7411bcd35aa493779e6e9e0c89223b7ade1853caf2767a81663c66bcfa098. 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/CAENV2110183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19b143f4b2559e1d7d86b1fc9f5513a3d7a6fbcd530d76bd7d1b176a9b3668d4. 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/CAENV2110214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d57fda5b93e8a68ea15ca1f2c1c34ad0d6cae2ae94d3a9e42e1391b27919ebe. 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/CAENV2110215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fa62b66b50aef1d2bf9dc7d61c3b5d1eedf50b59bf2d4eebac6104ec8f3b72f. 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/CAENV2110216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x577e5abf275e8731f2ca1339ed90dc1ecc974602f0d53d04a73ed499153d3348. 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/CAENV2110218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x800c659c7625987e602e15703460772fca2bafd7355536bcf0f35996818d601f. 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/CAENV2110219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba7ac984096899b77803d5a0e76f2fd15362397e800e6ebb67745df42f32a45f. Chain 2 (Bitcoin): anchored in block 960277 (2026-07-30T16:10:47Z), 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/CAENV2110220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12192cea3d4bae045adea82d485347376b11f24ed8d994160db3a61d5d81879b. Chain 2 (Bitcoin): anchored in block 960305 (2026-07-30T20:14:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CALVP1940859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf229fd45b5eea558773796d6492333a3cb23a603490d832f231fdf5f11bbe0ae. 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/CALVP1940861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84348eace63ad398799f9c5b6acaefa26d60ba00bbde98a9bf41503bc4dd88f6. 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/CALVP1940862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaa17c3d4886ce4d8e1aa07e582020a0ef4a63a4aaeebf3c93796ea5f3f0f481. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/CALVP1940863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4efc21cbc28ab10fcd6d60f49faccae4dc5e5680761f6b2bbefa6b18d6abf0b8. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/CALVP1940864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf71c8e3e0550a45bf8d2dc6e9e3307904c58b0689e336f415071e01f191ce5b. 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/CALVP1940865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd759464c216e6200d50cd733d3965afa36c2ea530159c8c10e608abcb7737606. 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/CALVP1940866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96b5d2c3fb41bae08949cd02b849b859c59a056fc96b1ff0530c4e6105ed81dc. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/CALVP1940867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdce62c2c5f47e8e6039ef8c3bfcd623c1b17504b02a16c64e45d61c081669f90. 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/CALVP1940868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80f379b9a534ea9e9f76dba17c3b5180b69744ac8a51a37dcd5edac16f614a77. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/CACWV2073204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x354e023247d386dec272db80ea1d8fd1f9d532d1802c7ae1dcf0bedf4aa2a458. 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/CACWV2073207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3446b2082d24a50386057d1ea3e6e61d657f5793223838e393eb2f62699ea8cc. 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/CACWV2073208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ab6eed2fb96f8b2a800b68599aa1095e5bd6cbc93759671a444c969a517f430. 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/CACWV2073210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc311f6d75da0d95a9e3b070268c06d1812302d0c8d341be357e4137721d4edd4. 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/CACWV2073211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf41725f75c65acd5e6d0d0b2b22cc10d2e654e1d2dd2d44520d33b7dbfc0dcb4. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/USCGJ1913530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3353ec16d39e35ca3ce17808cae89dacea7d21b678e706de603273900eb1de48. 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/USCGJ1913532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x463ce0d86bac8d0571241b144de60bd8c9f086fe8b7090319c1028641e03bdbe. 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/USCGJ1913533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e3b987ebaa7e8cbb67a3296b90beecd473509f991ba37af03101d5d090ebfa9. 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/USCGJ1913534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96135a3d3dc88fefaaa3f7be63ab31b7b2c7e6bbf8eb697e2d8cea3535f8f372. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/USCGJ1913535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d92ece673db6a71b4a7987cf88913b5290901679771c0c1197a807df912997e. 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/USCGJ1913536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ae293d4762f0a192daeeb5fae9d78312366acc88a1abe6a74e526744177d36a. 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/USCGJ1913537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90910f7814af2d866edac33ff98a69e6361f5019761f8a23e5e323f6942763a2. 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/USCGJ1913539.
Szörényi Levente - Bródy János: István, a király
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60b498a3c9ab9e596fc2fe0f3e6477e16278346a09fcccd12798d8f549aa03e9. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/CH6542315343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85aaef166ebd02eb67f52520f4f657ad00ed4c12f820b97a3a76768ccdc176b0. 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/CH6542315344.
Gyöngyösi Levente - Balla Zsófia: A gólyakalifa (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4b039258098a57fe800008a7e57088f71fea8a93976c6cfbe173f755b4cb284. 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/HUB281900138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83272487b8838700ab121493f07d2f6860b52e634c352771ed88e66e716e9fe6. 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/HUB281900141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2752b83df5fc2ac813c911655148177de49bff386a47915525d018afcebfb9c. 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/HUB281900152.
Gyöngyösi / Desimpelaere / Groslot / Watté: Piccolo Concerti