ISRC DEF050702170
Verified recording
DEF050702170 is “2 Waltzes, Op. 69: 1. Waltz In A-Flat Major” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0xbd5df52603db78d67b7db3462ba4e068b52a7fb1f08fca7137dee28fc17fa5db 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/DEF050702170.
Recording identifiers
- ISRC
- DEF050702170
- Title
- 2 Waltzes, Op. 69: 1. Waltz In A-Flat Major
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0xbd5df52603db78d67b7db3462ba4e068b52a7fb1f08fca7137dee28fc17fa5db
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:598953430f50c24d62a3a28ad6949205cfd0aacabb0a2cef4b5fcb36206cf068- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF050702170
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: 2 Waltzes, Op. 69: 1. Waltz In A-Flat Major · Machine-readable JSON-LD