Pianissimo Study Sessions
Recording by Office Background Music.
Recording identifiers
- ISRC
- QZWDE2328325
- CopyrightID (CopyrightChains transaction hash)
- 0x7fc6e9f9f453d28e24de0eb7a8a5c75516fbe8308565ba28978669dc717a7c00
- Copyright registration time
- 2026-07-30T12:33:44+00:00
OpenTimestamps proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T12:45:34Z
- Bitcoin block
- 960258
- Canonical record hash
- sha256:2a5e5e5e37cc92e9024903d852f4c21650fe85394c704f2cb2f313be96b5f4d7
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.