ISRC FRZ131306160
Verified recording
FRZ131306160 is “4 Poèmes, Op. 5: No. 4, Sérénade” by Charles Martin Loeffler,
registered on the CopyrightChains blockchain with CopyrightID
0x23b50cf162539028dcbc0ad6c2ea43ac24b9cc49bc42b80fcd23b29de0ee703d and independently timestamped
in Bitcoin block 960236 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ131306160.
Recording identifiers
- ISRC
- FRZ131306160
- Title
- 4 Poèmes, Op. 5: No. 4, Sérénade
- Artist
- Charles Martin Loeffler
- CopyrightID (CopyrightChains transaction hash)
0x23b50cf162539028dcbc0ad6c2ea43ac24b9cc49bc42b80fcd23b29de0ee703d
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T09:37:10+00:00
- Bitcoin block
- 960236
- Canonical record hash
sha256:669ccba25f0c930c0a385f39583c130bf062423f47919686c43eecbdb5bf5a98- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ131306160
- Bitcoin block existence check
- https://blockstream.info/api/block/960236
Full record
Track page: 4 Poèmes, Op. 5: No. 4, Sérénade · Machine-readable JSON-LD