Bouncing

Recording by Norbert Grzegorczyk.

Recording identifiers

ISRC
PL31T2304829
CopyrightID (CopyrightChains transaction hash)
0x349733856e1ce55177fd614c54224613d2f87a86e88b9bc8761eb81e11fae4bf
Copyright registration time
2026-07-07T16:58:20+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T08:56:20Z
Bitcoin block
957145
Canonical record hash
sha256:cb98ae133ecd41ded5c5c0d1fac97bfd46edad0e206ed6369d26abf6be932bed

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.