ISRC DEF058104900
Verified recording
DEF058104900 is “Martha (Opera In 4 Acts) - Sung In German / Act 3: Ach, so fromm” by Friedrich von Flotow,
registered on the CopyrightChains blockchain with CopyrightID
0x51cd63b62bc01e5bf0d4f13b99def862a315fdd5796f47e83d10782d473235ec and independently timestamped
in Bitcoin block 960273 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058104900.
Recording identifiers
- ISRC
- DEF058104900
- Title
- Martha (Opera In 4 Acts) - Sung In German / Act 3: Ach, so fromm
- Artist
- Friedrich von Flotow
- CopyrightID (CopyrightChains transaction hash)
0x51cd63b62bc01e5bf0d4f13b99def862a315fdd5796f47e83d10782d473235ec
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T15:42:38+00:00
- Bitcoin block
- 960273
- Canonical record hash
sha256:608cd0519c93960627ff2e7d19f2ab26dded750ca5bb22e8719c53e44c172c0a- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058104900
- Bitcoin block existence check
- https://blockstream.info/api/block/960273
Full record
Track page: Martha (Opera In 4 Acts) - Sung In German / Act 3: Ach, so fromm · Machine-readable JSON-LD