ISRC DEF059903222
Verified recording
DEF059903222 is “Piano Concerto No. 2 In F Minor, Op. 21: 2. Larghetto” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x91f2669dcb493a532758eb662ba2dbb66a1367b32790aca7adc1cd4bc6e87dd2 and independently timestamped
in Bitcoin block 960145 on 2026-07-29.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059903222.
Recording identifiers
- ISRC
- DEF059903222
- Title
- Piano Concerto No. 2 In F Minor, Op. 21: 2. Larghetto
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x91f2669dcb493a532758eb662ba2dbb66a1367b32790aca7adc1cd4bc6e87dd2
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T21:13:37+00:00
- Bitcoin block
- 960145
- Canonical record hash
sha256:423c0dfab76462365c7bf2c14f3b25321db52230fbf16d8189ffdb73d8e51750- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059903222
- Bitcoin block existence check
- https://blockstream.info/api/block/960145
Full record
Track page: Piano Concerto No. 2 In F Minor, Op. 21: 2. Larghetto · Machine-readable JSON-LD