När jag var en ung caballero

Recording by Evert Taube.

Recording identifiers

ISRC
SEBFO5401020
Release date of the album this recording appears on
2004-01-01
CopyrightID (CopyrightChains transaction hash)
0x70e8c4f948b991cfd27cf290b4b8bc6e1a120461d13f5d399ef0d84a0c0a26be
Copyright registration time
2026-07-31T21:39:45+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T22:27:44Z
Bitcoin block
960473
Canonical record hash
sha256:7a22092eb2502ec9fa5b9d6e478ac0dcde450376de37a8213f5c1211edd1271e

What this proof establishes

This recording was released in 2004, 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.