Concerto No. 2 in E-Flat Major, Op. 74: III. Alla Polacca

Recording by Carl Maria von Weber.

Recording identifiers

ISRC
SEAEP0623100
CopyrightID (CopyrightChains transaction hash)
0x137345cd95181cb7ad8f90f10284b170a571de2211af5a92b6faab5f52a65085
Copyright registration time
2026-06-19T13:29:24+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:ab8534bca59acf21222a46250ae019279c8d50082195138f1c22715e25756845

What this proof establishes

This recording belongs to ProofProfile's historical evidence base derived from the pre-2022 AcousticBrainz and MusicBrainz corpus. ISRC is the stable recording-level bridge from that source corpus to the authoritative cc-db-prod track record.

CopyrightChains and Bitcoin OpenTimestamps make the exact committed record independently verifiable today. The cryptographic proof does not by itself establish authorship or ownership of the underlying recording.

Read the complete pre-generative-AI provenance and verification method.