Retrouvailles

Recording by Jo Blankenburg.

Recording identifiers

ISRC
USA2P1919523
CopyrightID (CopyrightChains transaction hash)
0x4cf1bd7a47aa5d871df222540e304a4d48204b6d7d12ed1ecb24d920968ee1c2
Copyright registration time
2026-07-06T21:48:40+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:b683cd6d7aabde6981f37834a6e9d4f66a9a9d746b3fe2a4c7231040911df166

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.