In Search of Lost Time

Recording by Jacob Gurevitsch.

Recording identifiers

ISRC
DKAZ71810803
CopyrightID (CopyrightChains transaction hash)
0xd54d7b6b6644a2c640d7ff143e5908718079765c16fbdc1e96c90745f3f890dc
Copyright registration time
2026-06-26T23:42:42+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:1f07f9cef70bd38a5ddbf75ac022fd9bb2bbd7868b239f9a734249b0cf6a8250

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.