Qry, (born Patryk Lubaś March 12, 1999, in Jasło) is a Polish rapper and songwriter. He is a member of the bands Chillwagon and Trzech Króli. He has collaborated with artists such as Borixon, Kizo, S
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 0x4ca43f61c03bc522172358b1a7e83777443f583037d0443ff5e1174cc4a8bd7e. 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/3efb212f-dcc4-42ab-a2f6-e41755c40dec.json and https://artists.proofprofile.net/proofs/artist/3efb212f-dcc4-42ab-a2f6-e41755c40dec.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 0xa35ae31881d0ada0d443b2c9784373ac40403423917e866c6e2b4b3d78100809. 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/PLB381900320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x731373c2cbfebe3ed007d6ff90792fac4702b2709f33d8b46f21a15b86c998ae. 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/PLV401900599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa887e281cd190dafa95f02545ec22b86d35d988f69079f013ba650bcad2e1d20. 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/PLV402000668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa35ae31881d0ada0d443b2c9784373ac40403423917e866c6e2b4b3d78100809. 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/PLB381900320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3157456b33f88896f5fd6c5779ada95a3a697c6043f176b815f2bc963bc81f38. 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/PL22G2100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x750377b5ff0245bb06dd65783433eddd87a2fdc772d2d7a0a256d92149a7684b. 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/PL2DY2301111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc52cfc2c744d1b6b030c6124f5c170ce361369950a0be1326ce2e9423bd25fc5. 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/PL59G2100142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeede2e7c23e0fd41d929cd38811680ea631e6d08389dddc8177c863a62f65550. 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/PL59G2000024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0845533baacda712d2a76e587378008f8f35321ad5ac3b34d71e962a9e3c2db. 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/PL59G2000025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cf772c23ec251f8affea72bbcc9ecdd6ca2758ba29e2d0ad49a75a2684a606b. 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/PL59G2000026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0854963d5b7e6e74fd09e71f77ec9dbe2a39b4aebabe3f005f3d5de101492178. 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/PL59G2000027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6814cc3d925179e19434625007a2c7523f01d6c351880fd3a2713836a9444404. 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/PL59G2000029.