thumb|right|260px|Rudi Mahall thumb|right|260px|Rudi Mahall Rudi Mahall (born December 23, 1966) is a contemporary jazz bass clarinetist. While studying classical clarinet, Mahall shifted towards co
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 0x81cc86e5b79a6266618cc494cefc4aecdb2a9cd287896b3b407d1421bc8cabbc. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/57c38737-c9d8-4fd4-8f8d-dbc99a779ede.json and https://artists.proofprofile.net/proofs/artist/57c38737-c9d8-4fd4-8f8d-dbc99a779ede.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Jazz Now! (Live at Theater Gütersloh) [European Jazz Legends, Vol. 4]
Aki Takase Plays Fats Waller at Babylon Berlin (Live, Berlin, 2009)
One Man's Trash Is Another Man's Treasure
Elektro Vol 2: Rudi Mahall & Even Hermansen
Plays music of Bacewicz, Kisielewski, Komsta, Lutoslawski, Penderecki
I Do Admire Things That Are Only What They Are
Leo Records 25th Anniversary - Loft, Koln
I Do Admire Things That Are Only What They Are -