Cantiga #48

Recording by Alfonso X El Sabio.

Recording identifiers

ISRC
USCGH0710526
CopyrightID (CopyrightChains transaction hash)
0x5c49b04db7de38dcd78430a32db6afa15f259b89a13acced585e4618c12b5de7
Copyright registration time
2026-07-06T05:51:17+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-06T07:53:57Z
Bitcoin block
956894
Canonical record hash
sha256:2be50637a73c87b5bbc14e17ed1487a5d34ab3f48853b53dee7e49bd28aed15e

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.