Once when I was young

Recording by Justus Rümenapp.

Recording identifiers

ISRC
SE5ZV2110701
CopyrightID (CopyrightChains transaction hash)
0xc2754d413c7bd2a64828678bd8d6933bbaf75c0f0404e9c7133fe5c5bee3d565
Copyright registration time
2026-06-07T19:04:03+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:53:06Z
Bitcoin block
953515
Canonical record hash
sha256:67d700b3e8f5d5fac44bcdd2431524c32043e68d198123e6afd5f88ef0729070

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.