Paweł Jan Mykietyn (Polish pronunciation: ; born 20 May 1971) is a Polish award-winning composer and clarinetist. By the year 2012, Mykietyn had written two symphonies, cello, piano and violin conce
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 0x414adfa3ba49196b430018ffcbf4daf97b1fdf9fd4f61ab7eca359569a63e036. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/edb50ca5-52f6-4920-8e53-abbaeafc9423.json and https://artists.proofprofile.net/proofs/artist/edb50ca5-52f6-4920-8e53-abbaeafc9423.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 0x36eff1560a59cf756a10af3eb7870e8c76b52ab52db9d947e99ff3b42b964daf. 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/USQX92204431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd035a57ea11ac904da309fbff33f8f51ba5857fe74bf086941444ed6ea97961. 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/USQX92204433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x742cb701a2867eae4bc85df5e0f747d1beca70c25afca6b1cce74d815dd68ae0. 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/USQX92204434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3add6c1192f4de5c399614416daf64ab34cf625aee822cf73d520c8c0e6d4e93. 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/USQX92204435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fae959b093df2edaa781fe6d6d53b4cc49016393d131ad41b90b5f00d600bc7. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/USQX92204436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x023aee92111f7737bfee18337f4b770a06f75eece5f10ff139b03983ede14018. 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/USQX92204438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4376e2ffa7a80780e02b0f9ace9a3a29a28f33df9a38a2dca54dbfa9cff9b1f4. 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/USQX92204439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d140987fa0d512a8d2c4caff9637dd25182534f9490b14a47d6560031af0452. 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/USQX92204440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd60b16a01999aac720e56b18cbbe161e4c41f9c82f41cc9f9714f759eeac3908. 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/USQX92204442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15fb15f7ba9dcf384a68a9eb34ea3fca668a5233bca97638502af06538e26422. 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/USQX92204446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x830fdab0023cc455ea45a46d26554554afb61d24a138784ece205705fa563552. 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/USQX92204448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97ed45caf556b917346a71f6c7f67e8cdde288f8a6effffc580d89e6244b1eca. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:26:08Z), 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/USQX92204432.
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 0xafac2181d30c95681967b368f8bd5d533952e3d50e24a0637e65e495f26ddaa9. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/USQX92204437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x982595a13e76f6b8a23df6ef7e408edd86aa3e9836a50c205e2bf205cc0688ca. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/USQX92204441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd1b2dba2225ccae6cda1f02c4ba1e57f8df448f7371bb0447dd0eea512767f1. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/USQX92204443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf78d53bdaf86761ba7b2c92171ee8c21bdcb0abecc00e87c7794388a85977ee0. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/USQX92204444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe405598fc9ed6f25bac744b2972b4b5e1f7835a3b8ffc743b3dec96a0846222d. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/USQX92204445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51a7d61b5502dc6f19d5eaab11a69433f7cf6e919cc111436a9947ab12c6a1d9. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/USQX92204447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4286a8d12be6cf77b394a3d83204edaf09c96d27392772beef665c6bcf6cd0c5. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/USQX92204449.
Mykietyn: Symphony No. 2 & Flute Concerto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5927f8d5b2e420f01c39f51b2782b1840f7ceaa6da4eb1b1b9484279c5538c73. 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/PLB351723601.
Szymański & Mykietyn: Music for String Quartet