Margot Hielscher (29 September 1919 – 20 August 2017) was a German singer and film actress. She appeared in over fifty films between 1939 and 1994. Hielscher was born in Berlin. In 1957, she was chos
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 0x4c7270e44cdcc4e34aadd976c447b2bb97bf269de59eaeb5a2af13bf17097f25. 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/6613a3b4-e7e3-417f-8a46-55a2a11b6ca0.json and https://artists.proofprofile.net/proofs/artist/6613a3b4-e7e3-417f-8a46-55a2a11b6ca0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Margot Hielscher, Frauen Sind Keine Engel
Icons of German Cinema: "Frauen sind keine Engel" — Margot Hielscher (2019 Remaster)
Eleganz und Schlager: Vintage Songs by Margot Hielscher
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 0x2941c7ef8e63ca563e3cb655056b3b3f5d721041a11c6d129649e32988f5bfe9. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEN960902640.
Heimweh nach dir: Finale (Heimweh nach dir)
Wirtschaftswunder Kino 2: Bei dir war es immer so schön - Fanfaren der Ehe - Die Frauen des Herrn S. - Musik, Musik und nur Musik (Original Soundtracks)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x604d0cac8831335a31b4075c5dc2b2b39a3bf6b8d82a83595e307a787065690a. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/DEL112000272.
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