Album Leaf for Vazlaw Ulwer in E-Flat Minor, JB 1:23

Recording by Bedřich Smetana.

Recording identifiers

ISRC
CZA161300606
CopyrightID (CopyrightChains transaction hash)
0x6cbe615d1a15a80139116bd79f29dad8b66fa9778accd2094065fab5e48bb98c
Copyright registration time
2026-06-22T04:35:16+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:9709c74d363355c10a9d62b2edc0dca4542c82c0c300b6046f229f24c4911383

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.