Holger Hiller (born 26 December 1956) is a German musician. Hiller studied art at the Hochschule für bildende Künste in Hamburg, where he met Walter Thielsch and Thomas Fehlmann and recorded first wo
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 0x212bc9d71ec0d135fa649b666c3eabd40f3954eb355b21344947cdbd33486f6a. Chain 2 (Bitcoin): anchored in block 953727 (2026-06-15T02:33:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/901181a0-8afd-4042-9cca-498cbf8c1711.json and https://artists.proofprofile.net/proofs/artist/901181a0-8afd-4042-9cca-498cbf8c1711.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Oben Im Eck/Ein Bündel Fäulnis In Der Grube
Oben im Eck / Ein Bündel Fäulnis in der Grube
Kollektion 03: Populäre Mechanik (Compiled by Holger Hiller)
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 0x4dd98d174027508426ddb56fddfb5410e3c23911909f61469be6823e7bf7f58d. 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/GBAJH0400053.
Eins und Zwei und Drei und Vier - Deutsche Experimentelle Pop-Musik 1980-86
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eb09641c8e8958e58eab6b84d8a5c34cc870d4920262c51abc9cf31f8f941fa. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DELI52103373.