ISRC DEF056500772
Verified recording
DEF056500772 is “Waltz No. 8 in A-Flat Major, Op. 64 No. 3: Moderato” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0xd3c05f77bf3db19cfb780945348f3ee40fa40683702480fff38682f735dbad29 and independently timestamped
in Bitcoin block 956304 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056500772.
Recording identifiers
- ISRC
- DEF056500772
- Title
- Waltz No. 8 in A-Flat Major, Op. 64 No. 3: Moderato
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0xd3c05f77bf3db19cfb780945348f3ee40fa40683702480fff38682f735dbad29
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:55:08+00:00
- Bitcoin block
- 956304
- Canonical record hash
sha256:232f273698c92121062e4b68478f5393e213f9f4f1121ea6f90f04df691bedb6- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056500772
- Bitcoin block existence check
- https://blockstream.info/api/block/956304
Full record
Track page: Waltz No. 8 in A-Flat Major, Op. 64 No. 3: Moderato · Machine-readable JSON-LD