Kuba Badach (Polish pronunciation: ; born 24 August 1976) is a Polish singer, composer, arranger, music producer, music journalist and television personality. He's a co-founder and member of the band
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 0x34102cf3d96f08064900d3906ab55331cb70c719bc1a7f52787041ff83b319af. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fa3ab032-2132-4cf9-8f44-c06dff37177f.json and https://artists.proofprofile.net/proofs/artist/fa3ab032-2132-4cf9-8f44-c06dff37177f.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 0x02ef4650a268763367845f8fb6bbffab9742a521209543986fe383d674963efc. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T20:05:39Z), 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/PLC590900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86e5f57a8020884d906ec970391c7fd53c4908e20cbc0addc6b4cf72a0fd417a. 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/PLC590900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4238dca40f00d8aefebb9cad06e733e392de93a35a2d9f85d7169ef75b4f88e. 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/PLC590900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2ec9b68d0171a5323d980a37a7308168901563240e6c54cfd2d5913e7f8076b. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/PLC590900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x768a2398e718e795fe68d3605b2521b7de84db4aa8c2013b1a482968df4d2b3b. 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/PLC590900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96e6678e1ed2793d2ae31b06563271ff6cb4a8b8e9188ed2b0243ea3dfb77e83. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-17T02:40:58Z), 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/PLC590900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x070680f3e111eb0eb0fd4c985f3d43f25616e3834c900c6351936d28b8ceed24. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-17T02:38:19Z), 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/PLC590900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd472ffae5eab4f36d1d28b81f83fd7d37b50a61a7559cb529c681e15c02345ee. 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/PLC590900011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32a6b012511b195c8719b62c80c1dc8e87bd64812f4ffaaf7a1451601bdec927. 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/PLC590900012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc75550c787ecc039bc7780b375d8144b3c515197305b101d37cb67a39dd88d8b. 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/PLC590900013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3285e507f7ae7f3cc5bc76b601d3c388f751d3747b92f5aa757a68840b9ce5f. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/PLC591700155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb714d8abad1a065c914f0e63f17ddd2ba91ea8dc4dcf29e0ec4d6eeb752b0be7. Chain 2 (Bitcoin): anchored in block 957965 (2026-07-14T07:07:52Z), 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/PLC591700158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8d9a462d7d61ceee51fb07a729b44982f6d8aabed1bc2ab24dbd4798f1197b5. Chain 2 (Bitcoin): anchored in block 957558 (2026-07-11T11:36:38Z), 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/PLC591700159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2f3184877fa4d7aac5a6251c58d86c7002b451b781332f04c736e13a7491bfa. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/PLC591700161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c2ab83a12bc1460cf324be1aff1e8e60e89cf292bd863c37f00fd2fbcdaeb70. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/PLC591700162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab1f98207b6599f308d048c74480450f88877f789a6ce96676fc943f07320c0f. 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/PLC591700164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72f6adc576ff6dc454c19619548706ff89f35b41b6cf1ebcc5031dcc4c8b7553. 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/PLC591700165.
Liczy się tylko to (piosenka z filmu „Co w duszy gra”)
Obecny. Tribute to Andrzej Zaucha. Edycja specjalna
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe855b905514601ceefdbdd37ab7f83f63bb7bf6076c516026a359b8edcf2b909. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T23:57:21Z), 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/PLC592100084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab5b402426a88f0fb7616694c8e8c53c6d531ba0871257bec2f7a14875fb3d75. 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/PLC281200026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x567ce6d672ba5b4690b5390e7614136d1ea8e23b08de960c2b0592fc8d7bd030. 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/PLUM72100038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aafb97f52329b9f9db257cbc28ecb17a4252747ae7cf235971e994c15539796. 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/PLC912200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x657c2e147ac69d6c6150313c24fd1e91d3424f86696caa0111612e8f80f56ef1. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/PLC912200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c76e552cfbe67085656c47b4a11f668d7488d1c6eadaebb3e93ec8aa10ad2e8. 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/PLC912200013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f8ef721bc41e021fbe0f4724beaa53f0499e0571412d92adea586dfc8495198. 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/PLD272000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabece8e70f80a7ecbfc19c496dd5c200f6c864b153fec5c33530c4baaa6cfee6. 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/PLD272000015.
Leć Muzyczko Symfonicznie feat. Kuba Badach, Ryszard Rynkowski, Piotrek Cugowski, Ania Wyszkoni, Monika Kuszyńska, Natalia Sołtysek & Eliza Kania
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f1c1099fd18622ed45c6dd381a4afecf9da3e6d787b4abeb97b4d0f66bbd334. 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/PLD271300118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6de28b11e0ce481476ac912fc579e57cf8c852f1bec1b6ef3ede971c18d4bc96. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/PLC591800141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x662201bc9d61b5fe7ffa3b0f44ce4f989a003234c9963a627b89551e935285eb. 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/PLC591800145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9118164963fe120fbce5e90943c7d933396d654a67f2b65b3944715afa944f19. 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/TCADK1710258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63e20b59ec4d7ea2cf22191cababda6a5e2eeda68a3ac1899c82a90b8afbeb3d. 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/TCADK1710266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06d4e75e2adba045f48df7334faf1bfe3fd46a1ca398760b67f201c3b7360966. 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/PLC061303178.
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 0xc4945b0eed2a3f17d9bc6351821c25860135330e9d679992ef3d43980451e20e. 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/PLC591300026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d1e69088e01342459ed3c3bc1110bbe18d77683a840c33511a7f5cd37ed15e5. 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/PLC592000111.