Hollaender Mashup

Recording by Ilja Tretschkow Ensemble.

Recording identifiers

ISRC
DELV41702675
CopyrightID (CopyrightChains transaction hash)
0xc43189b31831b3dea05d50c2a40ab03b2e70088f2e234763cd35606abe40b9dc
Copyright registration time
2026-06-10T19:39:30+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:bb28efcec8eb6c1140ca5ebcac8ba91274dcc26a981cc7abce464e165a66674c

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.