ISRC FR50X2075703
Verified recording
FR50X2075703 is “25 Duos for Violin and Cello: XXI. Valse bavaroise” by Jörg Widmann,
registered on the CopyrightChains blockchain with CopyrightID
0x44dd11d06289a36181a1530a1a3e53edc95476611572458571fa8dd73d27ff5f and independently timestamped
in Bitcoin block 956894 on 2026-07-06.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR50X2075703.
Recording identifiers
- ISRC
- FR50X2075703
- Title
- 25 Duos for Violin and Cello: XXI. Valse bavaroise
- Artist
- Jörg Widmann
- CopyrightID (CopyrightChains transaction hash)
0x44dd11d06289a36181a1530a1a3e53edc95476611572458571fa8dd73d27ff5f
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-06T07:53:57+00:00
- Bitcoin block
- 956894
- Canonical record hash
sha256:de227f7f78684368a6c8b029f357a5d073e2f294d56f7473f6a24c9a6a0b954a- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR50X2075703
- Bitcoin block existence check
- https://blockstream.info/api/block/956894
Full record
Track page: 25 Duos for Violin and Cello: XXI. Valse bavaroise · Machine-readable JSON-LD