Dirk Rossmann (born 1946) is a German billionaire businessman and author, founder of Rossmann, Germany's second-largest drug store chain. As of April 2024, his net worth was estimated at US$4.5 billio
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 0x56c290e6bb285d4efd03bfb6019ba690ea849f861d9cafbe8416f8ef7b23ae8e. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/40220e4e-64c7-421d-b612-30a62d25849e.json and https://artists.proofprofile.net/proofs/artist/40220e4e-64c7-421d-b612-30a62d25849e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Keine Zeit für Pessimismus [Ideen für eine bessere Welt (Ungekürzt)]
Kapitel 2 - Keine Zeit für Pessimismus - Ideen für eine bessere Welt
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 0xfa66ed84ef242c84d507567e6eab8ff6c0d8254fff77fb59cefde4a94fc9a045. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/DEUE12525682.
Kapitel 3 - Keine Zeit für Pessimismus - Ideen für eine bessere Welt
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eeba4252fb7348cedbb10766ca1a4c7592c04099a8c00de604dfac09a5b6a3c. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/DEUE12525683.
Kapitel 5 - Keine Zeit für Pessimismus - Ideen für eine bessere Welt
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x356008c1105cbadb2c0c8bb44066cdb15027c326682f255ff5fe8d67ab2a82a0. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/DEUE12525685.
Kapitel 6 - Keine Zeit für Pessimismus - Ideen für eine bessere Welt
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83c14574f95bab1f6856f11c9e92cae25fd2768b719f801437067b185bb9e85a. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/DEUE12525686.
Kapitel 7 - Keine Zeit für Pessimismus - Ideen für eine bessere Welt
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b149ab69839f46063c8cbeedfbdb9a6101c7af8540a610234cf76860971a974. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DEUE12525687.
Kapitel 11 - Keine Zeit für Pessimismus - Ideen für eine bessere Welt
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5dd683976c0c25fa8ed9726f20130f863095deeb0d8389b3cfa21855e732f61. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DEUE12525691.