Natalia Maria Przybysz (born 1 September 1983 in Warsaw), also known as Natu or N'Talia, is a Polish rhythm and blues singer. She is a member of the Polish Society of the Phonographic Industry (Zwią
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 0x438666c415ea49c9ce690d7cc3189f45c0a9759bd9d2c4cf9f59fc90e34b6890. 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/245cbdb4-63c3-4e3a-a6be-b6e85f22e882.json and https://artists.proofprofile.net/proofs/artist/245cbdb4-63c3-4e3a-a6be-b6e85f22e882.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 0x5d58cd52f8a821d423a98fd30771c782f25d2e2aa5b774a77947e17c0b64bb07. 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/PLA551400619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e750f962e7f7eb322da5814b8b31682a21efefbaed094c08e87039e82d779e1. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/PLA581400157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b76bec82945589473ff07e45e456c35316d8cf076df9018974cd08488c4c1a4. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/PLA551700130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x311b52d2e7cb886d202b3200ebe4579fce90aa2de1d04914b2b40d3d925f8459. 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/PLA551700133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f26e29700ff39a88bc377ce7a856ec57f0d4b2198e85fe02de8ef28bfaf3ebe. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:16:06Z), 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/PLA551700135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x698d11f6c8d4d87ab447750bb794d9d51ea332c3a7f31c3d5a976c4cb246d8f2. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/PLA551700137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eb941e79ac31b5bd8d01b8927068dea114634b23c34c9350aff630c2012e2bd. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-19T22:32:41Z), 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/PLA551700138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xece6c28a5824703b64986b7c95e7cff6247834a4a227c7457385597c0258bad6. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:35:11Z), 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/PLA811900306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa05861d83e8a05ca06ca8afdc9ec849de5102ca7a1270e13af455d62391672b2. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:31:21Z), 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/PLA811900307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6794b874e8018c7ae23c3467a1f8e7c16594d9b616877adffd6e2a39a2bfd105. 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/PLA812100016.
Ciepły Wiatr feat. Skubas & Piotr Niesłuchowski & Michał Pepol (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d390110b3763f2bc12581e5f52d64d907e8ea1cce0b374360f45d3644cc7095. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T15:05:50Z), 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/PLA812100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c1100e3148bcfef76c611d8094625a3939d5f28c7bb19ab8f136670730ed218. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/PLA812100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa25a1eb36a533f37805494166b81b9cceba10dcd040fc3409f31d05562a470b1. 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/PLA812100015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6794b874e8018c7ae23c3467a1f8e7c16594d9b616877adffd6e2a39a2bfd105. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/PLA812100016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e06d63b2537bb753bb413dc5ad54e370a1d739a2c915a34f954cb0dace89cf8. 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/PLA812100112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe32140d3a1341f9a88c94fd8668e964d4ee70675ec0121a50bb7c859fac5b6ca. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T23:05:57Z), 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/PLA812100115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86d1d0312b8fd8f23cc6b1bdcb4713004084ac9cd3c798c3aec137f260442ef1. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/PLA812100119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec39a96403eba56e4952234067544db2692bdd410f3a7adcd06186d458bca824. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:42:21Z), 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/PLA812300037.
Stan pogody (piosenka z filmu „Smok Diplodok”)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f1e5a6051d4c40ba5e7e2307bd37b4fe5b5fd372e4a2f33898240e60c408617. 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/PLA812400049.
Nazywam się niebo (rework 10 lat albumu Prąd)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96aa5163c7b501a6fe12d3f87ff0b29ee4d4133886033777f031fa533cdb0635. 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/PLD112000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd7ec77857caa475b9c1867ab91cd47e69b08ef5b74b2da195879fd19f693b45. 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/PLC591900016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf19f2da8b652b543ed2f90c8fc1c697a2853c2248ff03a3d29f2f8511c360824. 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/PLC591900025.
Front torowania przejść - 2015 Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d3e4e3eec97e5d7dba5d1b456b902cf520a7da82699787d12fc3ebe6ef7a83e. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/PLK681500162.
Koncert Jarocin 2015 (Wersja koncertowa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62264b7ab7a816ee866bb14fdfb8e0d08c83ea5a7859f760be5223b1a2240ca2. 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/PLK681500221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf4c1e4d905a570a8d384b1d11fad4e108e98ae4f3865238d0111c96a20fa021. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/PLA392030411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4b70a212787af80f9d069f5204116a53d01882b96cb94e192946a32c976874b. 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/PLB822300245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd8e0841a0ddb83d56588cc137a2de4fd9374fb02608f54a5d5b20b4be57b2c4. 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/PLC591600129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde39edfa9808cbb1717b9ee333d0dc67b89f2eb0cec3cadb76d6d5a3619dee5b. 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/PLB822300272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc907599a30f4bd6f8fad7e57f3665342ef1eeed3bb218caa758b136b11dbd874. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/PLA391820404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd86c62b3e2829678cb5e382cf53df14196a9ebeb6a6c82ae6be4a53fd3485584. 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/PLA391820405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19f67947e99bb67005c92786a756a554eab0eefa6896506bca3b383ca589bf42. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/PLUM72400486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9069db131ff1ec0fa92f7569d1bf39afa14372af24707c086ebdd2cdf9b1bccc. 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/PLA551400615.
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 0x5e86154312affb0766a226e9f6fdada3e9da4cf1033abffdf70e89e4f9ea2f38. 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/PLK681500163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31d6938917957305fb761a0148dddb4cc48624afed96bd05d86acc7654232287. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/PLK681500220.