ISRC DEF059031942
Verified recording
DEF059031942 is “Waltz No. 11 in G-Flat Major, Op. 70 No. 1 - Pt. 2” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x3cfbc3f22984d405ede70e1f7d6970c8a8bef4b2e734a73f3759213f10410b9a and independently timestamped
in Bitcoin block 957118 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059031942.
Recording identifiers
- ISRC
- DEF059031942
- Title
- Waltz No. 11 in G-Flat Major, Op. 70 No. 1 - Pt. 2
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x3cfbc3f22984d405ede70e1f7d6970c8a8bef4b2e734a73f3759213f10410b9a
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:376610602fb28035faa86e9639f8c850db3666022fad317adcd644ef09c7a996- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059031942
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: Waltz No. 11 in G-Flat Major, Op. 70 No. 1 - Pt. 2 · Machine-readable JSON-LD