Iryna Petrivna Fedyshyn (, born in Lviv) is a Ukrainian singer and songwriter. Biography Iryna Fedyshyn was born on 1 February 1987 in Lviv, Ukrainian SSR, into a family of musicians. From an early a
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 0x3199c23c5cd1e066595485449c92370ca42b55d6d046f52774621a3c2e05fab4. 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/2ecafca6-71a6-41f8-a240-bf98b2409df7.json and https://artists.proofprofile.net/proofs/artist/2ecafca6-71a6-41f8-a240-bf98b2409df7.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 0x0e642772a150fbbc50fe35cfb31d1ea1929d59ae42414580763567b9df499115. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T05:02:52Z), 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/QMPU51254876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77dfac2f4efbe8b94661c15c9c10f77b001cef8dc9df44772c03f4d450e85dac. Chain 2 (Bitcoin): anchored in block 957579 (2026-07-11T14:35:38Z), 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/QMPU51254881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bdc6550d2b0d4cebbe83e0d17c4c7a7081e89020457082c9721394f3a05ba2e. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/QMPU51254882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x137f44b36c781cb8e1824f2eef269abef6d3bf9263cddda9f624afe2bf182431. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/QMPU51254883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ef9c23950554eea51fe42cd7ab113086e2f5978c1eae9e19e00e96856e30d0b. 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/QMPU51273670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf61982642f61c7a050b18af07ea9831f46a932f06e73ee6b10bb7c592e9b96a. 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/QMPU51253802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ec4c303ac0f36bfb36296344d7bc9e34fdd2f45136738a02936fad234dd0b58. Chain 2 (Bitcoin): anchored in block 958474 (2026-07-18T00:59:09Z), 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/QMPU51271964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x903e5c25dd283a31ec60f77f029f987198cd3f327ff011e89f8f6f86f75eb7ad. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/QMPU51271968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eec21b74781462e73c2a18e597029d39a4fdfd46853cbd15e7c188313ab21c5. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QMPU51271970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcdcb0655a1847400205a27a32cf2ac2d031e7551d9bf905dccc3c63ccf4209d. 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/QMPU51271972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f7922929ecba0db170c786a1de306d733426478e69e5774c7a0f1477252c6fa. 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/QMPU51271973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5f8bf09cb76da91b2ededda5a15141070d855ef80f927b0f1aee20ae41d9dcf. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/QMPU51508141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12305f20dacd6e7f14c6f4525efd20a2296a610b6426b52bbab711d26ded4035. Chain 2 (Bitcoin): anchored in block 958920 (2026-07-20T18:14:22Z), 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/RUA1D1711158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d351b63569edad3a55d80165fabac40acffe0a889ba181dd7ec3673183b671e. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/RUA1D1711161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e59366511993b27b38ee266c878f0572c57d0c616a0bb89586e852c6a11a4df. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/RUA1D1711154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72d17e06d1ed74f13cb1088eba213ec3fe30210e38a4faf67b7924508c74071a. 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/RUA1D1711165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ab36fd3e1c488e065739c7ad39886ac2fe8166a44a05a785e68009c49363f37. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/RUA1D1711160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc656173fffd5a9f5e8d6ced5d83b10a265b68a317784206c68549367ce0534a. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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/UABM11600903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde6e49014fe10b6de6bfe543848f7b80f0435f18379bd7e484997f70df80eaf9. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/UABM11601011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f3f3382df8553c6802199a253141351224eb87051ea198dd326331c33bb6bf7. Chain 2 (Bitcoin): anchored in block 957583 (2026-07-11T15:53:17Z), 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/UABM11601012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x316f209f5973c10106813974e2cbea3df20b2e5966cbcf019fe8f1032dbad489. 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/UABM11601014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x307b475b3faf77fa37d406eb5563858c55b8e4ebedcde9f87d7c230dfdb4cc5d. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/UABM11601015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6a5ea7c2b8ec8d8f3cf1e7c98dc56b4d0562fd22ae483749a6c43c24c28651c. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T12:32:15Z), 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/UABM11600021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f6cb395bd81eaa404ead45993e73de54973168ea6e94ddb4901ef068b740183. 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/UABM11801856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23a3e0b7006a516e8d196f97561ccc834e9cf276279f2063b983688307b64142. 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/UABM11900325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3f9a2f657a49d6d059f6133da580fbf682f13b11061f715c5700d995b03f2d2. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/UABM12000683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15e0df949370fbb362f6f68dbcf2ed50a64120d6eba0de5889b8803a9e9dc3d2. Chain 2 (Bitcoin): anchored in block 958670 (2026-07-19T05:26:23Z), 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/UABM12000909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36bb625616319c5fc227b8efb15b398f0dad597ee1041a865e1bed66a3599f08. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/UABM12100697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9361ecaeb3561b23e72bb145bdac87a532185939770e468b1c54ecdcbf540d1. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/UABM12100679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc30f15edd751f73ccb1dfde6009a3aeccdfaed2c4cbaed179da789eb009eab3c. 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/UABM12200138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda1568e651577c0cb2063b52c9e4546673e26a685a6da1aa1030e24162ad8b37. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/UABM12200659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f46832e25ba49b10abe729bcd5d44df242797922a7660aee08bf25e97f0c810. 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/UABM12400237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb30d5f5903c55ef4590c85c5e492b567ef038d725f920589c37c448f3cde9b53. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/UABM12400330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4bf22670197499edf2aff2e65a71236250a1691e27c3902575285e2e272224e. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/UABM12400273.