(Medium Allegro 3) - Voices of Spring

Recording by Johann Strauss II.

Recording identifiers

ISRC
QZX882312165
CopyrightID (CopyrightChains transaction hash)
0xef1ebef5bd567ae86844b691456b0cca4b3c2dc675f2e00aeba9f0054ec88d6e
Copyright registration time
2026-07-07T13:04:56+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:16f1e676a6bb047f26f9abf0c0c297fe1daaf5d89948cbdc70b6f454bc0d26ba

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.