T-Raperzy znad Wisły ("T-Rappers From Vistula") is a Polish hip-hop group founded in 1995 by Grzegorz Wasowski, Sławomir Szczęśniak, Lucyna Malec and Andrzej Butruk. In the years 1995-2000 the band wa
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 0x7c45c05eefb1c25e6a2cf342c32df57c202f2a78c84be10a49ec5f0c1a3c63ee. Chain 2 (Bitcoin): anchored in block 953730 (2026-06-15T02:47:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/932fd868-6051-4910-89b6-12506a9399b0.json and https://artists.proofprofile.net/proofs/artist/932fd868-6051-4910-89b6-12506a9399b0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
T-Raperów Znad Wisły Spis Przebojów Ścisły Czyli Stare Hity Z Nowej Płyty
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 0x213441bf762ce36b1f415134a0d765519c1000f7430d93f005f523b7346dc645. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/PLUM71201467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52e31d2ddfc572c3fab3954056606480bad0a27c6f509f31918e65d107eac9d9. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/PLUM71201474.
Lektury Literatury Czyli Bryki Z Towarzyszeniem Muzyki
Dyskoteka Szarego Człowieka Czyli T-Raperów Lista Szlagierów
Najwięcej Smaku Jest W Polskim Chłopaku - Lucy W Skaju Z Diamentami
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcebd90793160954a6abf8f29dd036e307f20db77de8c6fd627a35c0849f4aa65. 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/PLUM71201341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a200af53ef73b9e5994f247bed5ee541cca0abe9dae4ab662bbaba82ebe8fc4. 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/PLUM71201359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65c7ee6066b1724c60fff1a2c98303229f019481fb4fe2839108f5c88ca88d99. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/PLUM71201438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd49095426ac6127e75f02d95119feb75629554856860e1c1699e563691790a7e. 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/PLUM71201439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f6491b88cae238a3650543f869fba7ac6d5c00d15177a5aa89b29a4f9011d47. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/PLUM71201441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x870e8ff30339d0111526826bfc28facdcc1429e7ea6864d00ad0d7ad6ab59a60. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/PLUM71201443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb261312ef63a0015a2fbb81997e5bd2670cde7562aadad68f7d5739fde5cc4ff. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/PLR862500453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff92d0d195404b2790131b7362bc3308e0f4ad7e11116da2ca7f99f0f401163b. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/PLUM71201423.
Bo Gdy Cyganka Kocha - Zespół Kruszyw Budowlanych Gipsy
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2857b6065c973e4791866163db5af34e260159dcbb2d8e540d0bdfa8efdcac09. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/PLUM71201345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c9bb8934726eb67e30b592efddc71d387ea61ed8b18b1019e846f21cf836647. 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/PLUM71201416.