ISRC DEF059031933
Verified recording
DEF059031933 is “Waltz No. 9 in A-Flat Major, Op. 69 No. 1 "Farewell" - Pt. 3” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x7d2c7d875c6ae7a894db979da45c53c788d6365400825a0c88bf62314e6f32f9 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/DEF059031933.
Recording identifiers
- ISRC
- DEF059031933
- Title
- Waltz No. 9 in A-Flat Major, Op. 69 No. 1 "Farewell" - Pt. 3
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x7d2c7d875c6ae7a894db979da45c53c788d6365400825a0c88bf62314e6f32f9
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:d3491f52f1d5aba500c05069096e1c81a3b91584d905da13017a9afe0615c26f- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059031933
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: Waltz No. 9 in A-Flat Major, Op. 69 No. 1 "Farewell" - Pt. 3 · Machine-readable JSON-LD