Offertoria: Improperium expectavit

Recording by Giovanni Pierluigi da Palestrina.

Recording identifiers

ISRC
GBLWD0701617
CopyrightID (CopyrightChains transaction hash)
0x9226d1ee25808a885ee003707d90030e5d5fef458059b363870b9061dbbfc988
Copyright registration time
2026-07-07T15:26:48+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:6a9650fcf183f4ae3ff7a2177736d290c712cf02f35976c25d8e95eaf6349e90

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.