Katarzyna "Kasia" Cerekwicka (born 17 March 1980) is a Polish pop singer. She has been singing since she was a little girl. In 1997, at the age of 17, she won the popular Polish show Szansa na sukces
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 0xe127c0d241b8d87eed07ab44ce7bd34e5967db81a07075c10de04006bdaa1030. 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/0bb03818-f675-4fba-a8f5-6c3702fba868.json and https://artists.proofprofile.net/proofs/artist/0bb03818-f675-4fba-a8f5-6c3702fba868.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 0x342156f08fc16ab1bc36d3669b93f361b46f6af93b8fb8e90229f00827e9a372. 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/PLO981900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd7c26bcedb1300285099ecb9f54ac8350527158193f182f57d1b8c1ff9008d7. 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/PLO981900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6ed0f70dcfb8322bde42867846581bf2566693b48911968fae040f2893df545. 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/PLO981900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb53a0e9d5d7a83575b4980ce91e376c57ecb491d10208c8c473e77f685c65bd0. 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/PLO981900011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26975b48e0d2631cd5047ee61dbb3dc056765e987a322dc6d4ff2b5c04c6df9a. 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/PLO981900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfda764fab388fb7736c0ea4f26171156abdf2836bea74efc3a60f1e8580e3be. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/FRX762373920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2d7e81dfb496b69668412d367cd8e2312392abbd60c33352fce320b515e8fb2. 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/FRX762373941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4ae60f23735d94f4aa7754293de3f62141d41e68aa1a0c047f89872f2abc7cc. 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/FRX762373930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b51c9b33534fca6d81e49f9e8dcf1abff4f31af373fc1c7bbb7f85aaf69a62e. 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/PLA292400193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x674abae3c1c613e5c71a64fd65ea4557fc3e1f9c6b4a311d3bbcd00b79fcbf96. 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/PLC592000015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c0d033281f19c00c0193fd935e55646e3cc115fa86b3ba1f4c3b10b45a3dc1f. 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/PLB381500165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd96a4025b4bcb6900067e314251d96a35d14a68bd6cb86eb3adc6cc0fffa37ab. 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/PLB381500166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fb90c656c9bd646da657946245e967ae1a7ffd408f7d3cb5e8951051ffc2b25. 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/PLB381500167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c0bda2b6b6aa2f1b0aafbb77da633b814481950ce2128ad81f0831ab82905bb. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/PLB381500168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d709a3232c9b78cce08be744fd788f519e4760b84f02853f4b740155d94da43. 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/PLB381500170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa250ddd44412e12c0a90775e7af57e7a4a45f87450f88ab7e8d8f721f84ca59a. 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/PLB381000049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9a5e690997cb020fd0cf30778ffa2f776787f19b18a9f9cd509ab062e507190. 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/PLB381000050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e28499ffdeea4f72b774b68efb5fa1896b86723ae39350d0ae754ff56dc42f4. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/PLB381000051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce09e06d1182ad8d295c8ad0395b8e1e3af7a5d9cb24db4d3a1c3b78ab16a540. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/PLB381000056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf457dbbcba5e8b125b1ea6d9bd46ce2900c5f18486a7d5c81f35fd21884dd112. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/PLB380800325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3985213c091cc09ef16e192ecf9ed394a08956489991abc81c661efda3548241. 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/PLB380700258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x393df400b5285129fb78824f890ab5207bcc33fc998ff39a978ea28828afc2b0. 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/PLB380700180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd49b543b5abd6ccc2de68ff34a95c76f56299c3dc81fc4ccfdcfb6bf5d9d4281. 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/PLB380700257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa453ef8e00474967c6c236b444a530476558acb80603ebeb7d1fdeae5dcc8ccf. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:39:35Z), 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/PLB380700264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae671f3ccd408de4fd2144f5acebd36d816883f6acd79074f96aba6e2e7d0ad7. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/PLB380700268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8182ded0eaecbabee0f80a5fb95b87888d374ff9607a0d319e1dc0bfe2708788. 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/PLB380700263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45e994ddc91884b906f16cc58a0cd123e566e1860540776096549b7b93905d72. 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/PLB380700266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65f5909fee12cdf5e48be73c85788d62d9f52e40ca14061d5cc433e76094bd81. 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/PLB380700269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b0c77a4b8556908f5eb5b08686a753d0f0afbb7ce890f1b1751bb6ce65315eb. 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/PLB380700260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1adfd635386e1203d66357de8fc8951b0e1f8a4855d832bb597c3a2d0c5324b1. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/PLB380600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a7265f181bb9cfef1a23b7f20d3f78c51c82f59285f305e05ca71864337f500. 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/PLB380511043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc412a4d8e15c3f4d1566ff1975e0ea0c19c2f5dfa5174b62f5b0ee03003ce83d. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/PLB380600002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc12a5f0db23f1369d29fe16ba4e22e3800990dda125e111788f53b3a1fe8c72. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/PLB380600004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdae0759219e7154ddbcfd49426534e14db1a62b3204a968d841accfebddf8c07. 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/PLB380600012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dfd1d169dd87a46b098e0230891bee930360ede1a4c2b31d6e1c098c6ff9999. 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/PLB380511044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ba946fb21801bafd8e094ceaded56762d9c76b5fadb89aee8ae8c57a6c4f83c. 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/PLB380600015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x586bfcce91ef9cedc6a5559718c9f309efb99851125f9f435d8aa43505e86058. 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/PLB380600142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4395b70a078715c5486e38577e82fae5ef736a0b35db6ee9ff2530e3dadb5c0. 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/PLC141700189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48fdab09c24103dc222b94cfbfa3e7c16d32cc4a2370e46f3a9c53baa0a22b18. 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/PLB381500656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9a5e690997cb020fd0cf30778ffa2f776787f19b18a9f9cd509ab062e507190. 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/PLB381000050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa250ddd44412e12c0a90775e7af57e7a4a45f87450f88ab7e8d8f721f84ca59a. 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/PLB381000049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd49b543b5abd6ccc2de68ff34a95c76f56299c3dc81fc4ccfdcfb6bf5d9d4281. 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/PLB380700257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x586bfcce91ef9cedc6a5559718c9f309efb99851125f9f435d8aa43505e86058. 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/PLB380600142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x393df400b5285129fb78824f890ab5207bcc33fc998ff39a978ea28828afc2b0. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/PLB380700180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a7265f181bb9cfef1a23b7f20d3f78c51c82f59285f305e05ca71864337f500. 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/PLB380511043.
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.
Bracia Patrzcie Jeno / Anioł się zwiastuje
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e11cedad0dcfc92252a0ed4f7487bdad859ad46a71f03932526acd93570667d. 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/TCADK1710259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6313c500e2f25b0d34db1151b5c9e0706e60e1124a585df9d5ed4c069721a23. 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/TCADK1710260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc36a6747e744181eae72439815ecc11ad328712c6aa64cb8269287eab83c3acd. 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/TCADK1710261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcca4746e4120074788917211810760bf1f3d3c175aee295e0d359fa7cd46b302. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/TCADK1710263.
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 0x4f36bb6c217a863c907f0865a64dda54910cdb1d9b0a986337ab54c1c6effb73. 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/TCADK1710268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78f9163436a036007ecadceeb0acad816e704c227bd4ea75080d91f0c2339307. 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/TCADK1710270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x383223a53b6e8a3a7ca930608046f26642550f0631dda4c90c0056e96ad21a48. 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/TCADK1710272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b212d83e1e9c4f7fff9d1b90de430bdfece2515f55a8b0b63f985bc5f7c9f3c. 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/TCADK1710273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b2248247dda6895c2e500ccbc8b4bbb39661b9584f3bc7166e536428fb73538. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/TCADK1710291.
Nothing Compares 2 You (feat. Marysia Starosta)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6fce9374bcdffaf4a568a08c2f2f7a4febefd16c86d10757f679557042a4c0c. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/PLA550900258.