Lullaby for the Son of a Pianist

Recording by Jorge Grundman.

Recording identifiers

ISRC
ES5021700620
Release date of the album this recording appears on
2017-05-26
CopyrightID (CopyrightChains transaction hash)
0x7992a20a4c461fe84be63bafd51e8dc9d33bf52c084d11678e82ec8a7a4b1db7
Copyright registration time
2026-06-19T14:53:09+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:832cd45694dc25ae8d48403cb34d56ad282669a3c89c0a8d774a8728358a3efd

What this proof establishes

This recording was released in 2017, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and 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.