Improperium Expectavit
Recording by Giovanni Pierluigi da Palestrina.
Recording identifiers
- ISRC
- QM4TX2005694
- CopyrightID (CopyrightChains transaction hash)
- 0xc4f796dafa19bbe8b82118b3cfdb87be2d0140179c4883b5938132c5f97fa413
- Copyright registration time
- 2026-07-30T21:14:58+00:00
OpenTimestamps proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T21:35:24Z
- Bitcoin block
- 960317
- Canonical record hash
- sha256:ac236009db9661ca04472081d6cfdaa700299ebeb2c3b1d98ccc22b5af8fb61e
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.