Wolfgang Flür (born 17 July 1947) is a German musician, best known for playing percussion in the electronic group Kraftwerk from 1973 to 1987. Flür claims that he invented the electric drums the group
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 0x90fb645873bfd72c07c883914a03245081db31b93671a6db6a3b77f9cf19597d. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/89f10116-e20c-4c5a-a44a-85a96368719f.json and https://artists.proofprofile.net/proofs/artist/89f10116-e20c-4c5a-a44a-85a96368719f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Birmingham (feat. Claudia Brücken & Peter Hook)
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 0x7672fa9d64c1628bbe3762a525201bdbba6f3dbd3ceed6fc574180099f2c4f60. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/GBBLY2200504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafb88d56726d3fb48289e72ebde5762da5cc5c63f4d68ac8aa8523b1cb55a3c2. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/GBBLY2200507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51d9502af5a5626a2de88a12e980c07355c0a18932404dda09de399fc3ca29aa. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/GBBLY2500209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b5c597b2cb59df449d9a31f19e4d9b8575880dbdec6556dddd9141422e4a4ef. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/GBBLY2500213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79ee2018c02157efb69c2ca8334dc3da1c565a93294f56b86e9f31c524d7fe5a. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:42:18Z), 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/GBBLY2500214.