ISRC DEF059903221
Verified recording
DEF059903221 is “Piano Concerto No. 2 In F Minor, Op. 21: 1. Maestoso” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0xdbf17b98401c3bb389e47bfbd5bd9e543b6b360be205fa25758751fb1c79b5b8 and independently timestamped
in Bitcoin block 957025 on 2026-07-07.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059903221.
Recording identifiers
- ISRC
- DEF059903221
- Title
- Piano Concerto No. 2 In F Minor, Op. 21: 1. Maestoso
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0xdbf17b98401c3bb389e47bfbd5bd9e543b6b360be205fa25758751fb1c79b5b8
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-07T10:59:31+00:00
- Bitcoin block
- 957025
- Canonical record hash
sha256:cc5885681062842041657d5e2f6670f9e4910d0264efb7baf8809bb01ccd3626- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059903221
- Bitcoin block existence check
- https://blockstream.info/api/block/957025
Full record
Track page: Piano Concerto No. 2 In F Minor, Op. 21: 1. Maestoso · Machine-readable JSON-LD