ISRC QZPLR2313172
Verified recording
QZPLR2313172 is “Angel’s voices (25 Easy and Progress Studies for the Piano, Op. 100, No. 21)” by Friedrich Burgmüller,
registered on the CopyrightChains blockchain with CopyrightID
0xef686cfe1a0d46398fcb9d459b0e8e137c5fd08ec1549a2cd142ae9344076137 and independently timestamped
in Bitcoin block 960473 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPLR2313172.
Recording identifiers
- ISRC
- QZPLR2313172
- Title
- Angel’s voices (25 Easy and Progress Studies for the Piano, Op. 100, No. 21)
- Artist
- Friedrich Burgmüller
- CopyrightID (CopyrightChains transaction hash)
0xef686cfe1a0d46398fcb9d459b0e8e137c5fd08ec1549a2cd142ae9344076137
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T22:27:44+00:00
- Bitcoin block
- 960473
- Canonical record hash
sha256:404c887231d2deaea9561043033b0b0157df49085cb1a33b5097a38d0f487cd8- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPLR2313172
- Bitcoin block existence check
- https://blockstream.info/api/block/960473
Full record
Track page: Angel’s voices (25 Easy and Progress Studies for the Piano, Op. 100, No. 21) · Machine-readable JSON-LD