ISRC FR50X2200005
Verified recording
FR50X2200005 is “String Quartet, Op. 3: I. Langsam” by Alban Berg,
registered on the CopyrightChains blockchain with CopyrightID
0xf473bb3535a341fa91e8d45f930ab76e6a07674c3d16d03e25262ac173c644d4 and independently timestamped
in Bitcoin block 957118 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR50X2200005.
Recording identifiers
- ISRC
- FR50X2200005
- Title
- String Quartet, Op. 3: I. Langsam
- Artist
- Alban Berg
- CopyrightID (CopyrightChains transaction hash)
0xf473bb3535a341fa91e8d45f930ab76e6a07674c3d16d03e25262ac173c644d4
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:27965bf155dfe563add4c43b6c19d37c8fde90fb74033541a871415e31c21e06- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR50X2200005
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: String Quartet, Op. 3: I. Langsam · Machine-readable JSON-LD