Afternoon Postlude Soliloquy

Recording by Daniel Hecht.

Recording identifiers

ISRC
USWH18001010
Release date of the album this recording appears on
1990-08-21
CopyrightID (CopyrightChains transaction hash)
0xc7ee0aef03f6f3f655e2f780240ccb5a3e327dc50ac9b97c609272c082a46396
Copyright registration time
2026-07-22T11:44:55+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-22T12:33:25Z
Bitcoin block
959128
Canonical record hash
sha256:d7743420823112f1f626c0d8be971840b0af9990efb21a78f08d5fda17a5f4cf

What this proof establishes

This recording was released in 1990, 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.