ISRC FRZ149738060
Verified recording
FRZ149738060 is “Nocturnes, Op. 55: II. Lento sostenuto en Mi Bemol Majeur” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x682a5c67450a5f88f21f00bb90b317eda5a607d92c49c027900ea7af428b6513 and independently timestamped
in Bitcoin block 960138 on 2026-07-29.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ149738060.
Recording identifiers
- ISRC
- FRZ149738060
- Title
- Nocturnes, Op. 55: II. Lento sostenuto en Mi Bemol Majeur
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x682a5c67450a5f88f21f00bb90b317eda5a607d92c49c027900ea7af428b6513
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T19:35:34+00:00
- Bitcoin block
- 960138
- Canonical record hash
sha256:10803b1eaa0dfc697766b9b6d5f9348d3ec2348a32d0b3008cedc6d1f0d906d2- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ149738060
- Bitcoin block existence check
- https://blockstream.info/api/block/960138
Full record
Track page: Nocturnes, Op. 55: II. Lento sostenuto en Mi Bemol Majeur · Machine-readable JSON-LD