ISRC DEF059031932
Verified recording
DEF059031932 is “Waltz No. 9 in A-Flat Major, Op. 69 No. 1 "Farewell" - Pt. 2” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x0fb49abb708e90588f8b59561205032864ee199fe182b28ad3fc1c32cff74b90 and independently timestamped
in Bitcoin block 960291 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059031932.
Recording identifiers
- ISRC
- DEF059031932
- Title
- Waltz No. 9 in A-Flat Major, Op. 69 No. 1 "Farewell" - Pt. 2
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x0fb49abb708e90588f8b59561205032864ee199fe182b28ad3fc1c32cff74b90
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T18:23:33+00:00
- Bitcoin block
- 960291
- Canonical record hash
sha256:60715bfa0e0a083909e9f5763c353d48aa4c77c5fd494a5454eb4c623acadd32- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059031932
- Bitcoin block existence check
- https://blockstream.info/api/block/960291
Full record
Track page: Waltz No. 9 in A-Flat Major, Op. 69 No. 1 "Farewell" - Pt. 2 · Machine-readable JSON-LD