Back Then

Recording by Yung Bleu.

Recording identifiers

ISRC
QZ9JZ1742753
CopyrightID (CopyrightChains transaction hash)
0x058bf8a12db112f32c4dc9c8dc8637c5cc7b06c83019a919c36a0e7e74172198
Copyright registration time
2026-06-21T19:21:02+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:76b42ef805623a80d397c1a9c24ce87251c3bacd9365ab2449b49240066c6b63

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.