thumb|The Rudolf Tomsits Quartet with György Berkes (piano), Balázs Berkes (bass) and Vilmos Jávori (drums) Rudolf Tomsits (12 May 1946 - 11 June 2003) was a Hungarian jazz musician who played the tru
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 0xf68223695b8efb874a6147b478578b5cf91e16c4529a158cd0973a38b23eb1da. Chain 2 (Bitcoin): anchored in block 953588 (2026-06-14T04:52:46Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/00c98d7a-eb2a-40f0-af0d-4e309b094068.json and https://artists.proofprofile.net/proofs/artist/00c98d7a-eb2a-40f0-af0d-4e309b094068.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 0x1f209279577f9aa7a59635de23ba0b8887608f568016bb59de01decc92a12428. 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/HUAC60600528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52a70ae25091998726e0ef55ef0304f27877db34e605f5a226197fd111a0b146. 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/HUAC60600532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5c299691b7cd6050b614df54babdd97badcc14a042c8755810b83f3573e2be1. 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/HUAC60600531.
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 0xcb0214db43b12984e39958088e79cc35de95da497935ef8c65b1a540bd7c36b4. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/HUA251752401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa30836b8289d95b79be402a4bc391305d3c04df1cfee8d87a93415ba99a203c3. 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/HUA251752402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb620ee0430f732eca4a5d9b9f77100111906e22194e8809beb6e1d26d752e9c. 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/HUA251752404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf2674c6985ffc3d9e9fd2868e1994b616616fb1708418d6675ff9b275c3a1bd. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/HUA251752405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7824a0e94e6524018e53aaa7cd2bd7d6344ab536e18278804932a8ba8c61f40. 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/HUA251752406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e4e41cdab907478ec285d5b2da5a0737360e4ca9926dd881071f8d27897d43d. 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/HUA251752408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18e8ed14c6f1314bd6d16c4dce74a195124e852348da80398d17a0cbe85f16e0. 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/HUA251752410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0de904ca9ef46cad71b286946543c0844f5afb2a66358444d22d6d105f2f1dd. 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/HUA251752411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31b038621d24956ecea5df8c35e775697ce8f5aa58c5938e51d5ac9625c29dd2. 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/HUA251752412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0af99aabaf37ed21591ff1c8f9a641ed1892967fb43bac82d71a517fec86e71a. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/HUA251752413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc10b6668d73cecac1057e9af26ed6ec01d77cf74cd61154ae1c9f2925cb917b8. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/HUA251752414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eb9dcd5139752fb1c1081b4e4d5d9b4ea7beef1b78209cc154c9173bb3be18d. 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/HUA251752415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x351350d60659be374779e80a40655b2d3b1cb8e2b38f8ab29658adc928edf16b. 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/HUA251752417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a81b6c5d9b54f4c3fb350d9b234c1e5909a9820b4b9124c5624857ae2c565a3. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/HUA251752419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf1a4e784c978b0555d7ab9a580dc80aceab4c7b0040668f88068a6059368f2a. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/HUA251752421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50577011038b930218052dcd2a3785bc757e7b1900782401e8942c2e547455af. Chain 2 (Bitcoin): anchored in block 960101 (2026-07-29T11:46:30Z), 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/HUA251752420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc72cee5e2070744b6e023a0288bffcce9464709c9e7c3923890438a0e5eb16f6. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/HUA251752423.
Pege: Hommage A Charlie Mingus / Ostinato No. 11 / Summer Breeze / Autobahn / Agnes / Funny Night
Hungarian Jazz History, Vol. 17: Jazz Dance From Hungary
Children's Circus (Music for Brass Quintet and Percussion)