⁠Ma Nishtanah

Recording by Mendy Portnoy.

Recording identifiers

ISRC
QZK6N2411538
CopyrightID (CopyrightChains transaction hash)
0x56ef31a4ae2dc9f6a662457df07005b29f64aa06be4bc16a1d8ac5bfe5f32b95
Copyright registration time
2026-06-27T20:20:26+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:ee10e14c936a6d273427a6b8d2f29ba65ad8fe1ee4eba9a9029eab2db7cb71d1

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.