ISRC DEF058300082
Verified recording
DEF058300082 is “Piano Concerto No. 2 in F Minor, Op. 21: II. Larghetto” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0xb337891b5da622aa92dde157923af33adac2e558f19f3b5fc087ef691b7753e3 and independently timestamped
in Bitcoin block 959128 on 2026-07-22.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058300082.
Recording identifiers
- ISRC
- DEF058300082
- Title
- Piano Concerto No. 2 in F Minor, Op. 21: II. Larghetto
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0xb337891b5da622aa92dde157923af33adac2e558f19f3b5fc087ef691b7753e3
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-22T12:33:25+00:00
- Bitcoin block
- 959128
- Canonical record hash
sha256:73306732c794b494cd6f018576c810dd36f2c88ec43c62a6543ec01a0895a827- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058300082
- Bitcoin block existence check
- https://blockstream.info/api/block/959128
Full record
Track page: Piano Concerto No. 2 in F Minor, Op. 21: II. Larghetto · Machine-readable JSON-LD