Summertime

Recording by Wolfgang Haffner.

Recording identifiers

ISRC
DEA891500115
CopyrightID (CopyrightChains transaction hash)
0x088c357e1e3e28ee076a5122429bc930f4311c17b329c216e6b4351f23c222de
Copyright registration time
2026-06-25T11:24:29+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:843cb48fd3b3b407d0bc73122279f590484c4e383b9f40f77125d4b03b53a243

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.