Birk’s Work

Recording identifiers

ISRC

SEPUD1900211

Release date of the album this recording appears on

1964-11-11

CopyrightID (CopyrightChains transaction hash)

0x1555ef7e0ee34e1d3aa24b5339d3b8f52a1c9a809c30d303999f07686e961ff0

Copyright registration time

2026-07-31T06:12:00+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T06:42:11Z

Bitcoin block

960360

Canonical record hash

sha256:1c2a753fde229b3a545ffdc784e408c42cf4393bc9471dc865e4718529087cbf

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC SEPUD1900211

What this proof establishes

This recording was released in 1964, 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.