Heech obä

Recording by Ruedi Rymann.

Recording identifiers

ISRC
CH0130000308
CopyrightID (CopyrightChains transaction hash)
0xd60332bec023578e273b3efa3d455cd02333d6b4f2fccf218fcd7804180b45e6
Copyright registration time
2026-07-07T07:57:40+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:f8fb931772ef35d337b156bf206bf33a8c7335e984d887767e0f6d03d87cd751

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.