ISRC DEF056500752
Verified recording
DEF056500752 is “Waltz No. 4 in F Major, Op. 34 No. 3 "Grande valse brillante": Vivace” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x174bbef3817ce54175cb43e63fc4c369dd2c1b6c5ce64d6efdbff02a6716d5bc and independently timestamped
in Bitcoin block 960397 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056500752.
Recording identifiers
- ISRC
- DEF056500752
- Title
- Waltz No. 4 in F Major, Op. 34 No. 3 "Grande valse brillante": Vivace
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x174bbef3817ce54175cb43e63fc4c369dd2c1b6c5ce64d6efdbff02a6716d5bc
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T12:24:41+00:00
- Bitcoin block
- 960397
- Canonical record hash
sha256:caa438f4a9e9a9b8a17204becf1dcf7120e514dbd512dbd28d57b9f7917df25e- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056500752
- Bitcoin block existence check
- https://blockstream.info/api/block/960397
Full record
Track page: Waltz No. 4 in F Major, Op. 34 No. 3 "Grande valse brillante": Vivace · Machine-readable JSON-LD