Leichtes Blut ,Polka

Recording by Johann Strauss II.

Recording identifiers

ISRC
HKI199320409
CopyrightID (CopyrightChains transaction hash)
0x0425b772cffede1b5c55d6e4ca4b77ddf62b13fe5885fd556acb34e5a5a2ee05
Copyright registration time
2026-06-10T02:20:34+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:b97532fb64b599f4b09e7ca74a0b154db294669e56332214eabf50e35078a08d

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.