Irena Wanda Jarocka (18 August 1946 – 21 January 2012), was a Polish singer. Early life and education Jarocka was born on 18 August 1946 in Srebrna Góra, Poland. She graduated from the V Liceum Ogóln
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x1762e91aa26d6ce3878f745ddb9f5d71bab7e55181998585261ff00de05fe307. 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/bbff50cd-4e97-47ce-bc1c-ff2523223f3d.json and https://artists.proofprofile.net/proofs/artist/bbff50cd-4e97-47ce-bc1c-ff2523223f3d.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 → block OTSBitcoinBlock must exist at that height 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 0x15850dd11344bb4804c30d90e6033d07893559683fe8236051699a77deed67bc. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/PLA247418153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06c5ec6123c7cc2f1782c62a01df574e6c7724718abf362735dbbebe4d6156b2. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/PLA551900511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x847c813413ed3a157980f7a2720b9df7bb950784cf938e668d428d3cdb906664. Chain 2 (Bitcoin): anchored in block 957629 (2026-07-11T23:44:46Z), 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/PLA247418444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeece90d08226842c22870af14f4a9373dfe4cb6ea32928276a794a6817fca6a. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/PLA247418446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c595ce5d924b2d2d4947f4ecf595b88d4c0c83f05dfe60ce9115052763641a9. 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/PLA247620127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb00f9d247b642921eab83d726e729816f3442d895f80c4785ccfbf3e77047e61. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T16:01:47Z), 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/PLA247620133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x037e86b01749b04d3a070230270e35a6aed00197958b15576c22f4c629cf2d39. 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/PLA247620128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf66298d9c7b1cdc0ae0ceda5b4bf1870f8110b084b8198d6e8deca5e8fa727e8. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/PLA247620135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb436b45f30e4e69d7ea7d7ef377eaf8f84263ec30b99f447dd09599acde35e46. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-02T21:02:00Z), 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/PLA247620130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5a1197ad0ba338a5a2cec44a87d9a84b34f9c46b89e5338e8049d9f8fdf1e9a. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/PLA247620132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ff66a6fc5533d7a61707aa68e9de10b97064ae6efaf1d7314a8245fe0ad9698. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/PLA247620136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0b6478f600e908864900c70728261ec2939e235ca517e6584b255d61480a877. 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/PLB179500464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb42ced5b939a37a1126446c426838f71a297f2f863fd1802a89b8550603336aa. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/PLB171900069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d007bc315c3947875857463bfc086a75410fa21e210eb9751b66be0c44644fd. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/PLB171900082.
40 Most Beautiful Polish Christmas Carols. 40 Najpiekniejszych Koled Polskich
Kocha się raz (je n'Ai jamais aime que toi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9ef348d5090622e789f71a4d4d53a2741517a2181f6f9df6c886c754486a1ba. 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/PLA391703104.
Irena jarocka, której nie znacie, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75d3d1737e5a25269d903cc88127137c4e2a165dd5b523997969d444e52e59a8. 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/PLB171900197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x859f4850c9705112d0223be014bae9fb6d7b23319f9197295f0e8eff607ff6cb. 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/PLB170800422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cc078e9a504593f5f7ea73f2607521f5a1eadd1cc16d06d8a7620d47e1e6072. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/PLF780400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ed21d76c3ccf46adc6838bbd81c833e11daec5b1c713ed55430a2bd0f1458d3. 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/PLA391592016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe592dff100c578c48fad44b13aac67c8a026e51b1cd382adafd659e7f2f43ff6. 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/PLA247721468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea5aaa4f3115aa7de73af83a35cb2a944c841047903c78f397c925f271ab6f18. 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/PLA551400632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x661e92031166135a0261c77e306ab161f964bcb395845622f212abe1751d4400. 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/PLA551400633.