Ernst Moritz Arndt (26 December 1769 – 29 January 1860) was a German nationalist historian, writer and poet. Early in his life, he fought for the abolition of serfdom, later against Napoleonic dominan
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 0xe247e34ad2005fd5e40b4d86c3520163410f92c827260c69ece0c112cc77bf2a. Chain 2 (Bitcoin): anchored in block 953765 (2026-06-15T08:55:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bca71199-d157-4e58-9487-17b9275dc0a9.json and https://artists.proofprofile.net/proofs/artist/bca71199-d157-4e58-9487-17b9275dc0a9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Fischland Darss (Raues Land. Schönes Land.)
Die schönsten Märchen der Welt (Ungekürzt)
Was ist des Deutschen Vaterland - Historische Aufnahme, Reichssender Berlin 1939
Deutsche Hymnen - Klingende Dokumentation mit historischen Originalaufnahmen
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 0xeb55a3a32287e7331241aac332f7c570411da149226b548ceda4f1ff7f430da9. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEE701903941.