CSM 28 El Cerco De Constantinopla

Recording by Alfonso X El Sabio.

Recording identifiers

ISRC
ES7730608202
CopyrightID (CopyrightChains transaction hash)
0x6c3340e851e145f361629c0c90e27b154896bf6c80ad9e312a03fb3930dbae05
Copyright registration time
2026-07-07T13:34:42+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:2750e877b148f24eb83ed6b54d3ce90c5bc250a11d17c62e946cf2aed720c37f

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.