ISRC DEF056500760
Verified recording
DEF056500760 is “Waltz No. 5 in A-Flat Major, Op. 42 "Grande valse"” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0xbcf6fc7316a8c918dc7faf393cdb23da4410e49e8f69139bc5531c0f1b9d201f and independently timestamped
in Bitcoin block 960360 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056500760.
Recording identifiers
- ISRC
- DEF056500760
- Title
- Waltz No. 5 in A-Flat Major, Op. 42 "Grande valse"
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0xbcf6fc7316a8c918dc7faf393cdb23da4410e49e8f69139bc5531c0f1b9d201f
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T06:42:11+00:00
- Bitcoin block
- 960360
- Canonical record hash
sha256:40221b7645065dcc87868001683719b09a725b8c371d9f9c6f0372b0c55747b3- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056500760
- Bitcoin block existence check
- https://blockstream.info/api/block/960360
Full record
Track page: Waltz No. 5 in A-Flat Major, Op. 42 "Grande valse" · Machine-readable JSON-LD