Por las Calles de Madrid

Recording by Nuko.

Recording identifiers

ISRC
ESA012204995
CopyrightID (CopyrightChains transaction hash)
0xfeb1eb639ff15fcb3cd01b4699d60e9d2e13b2f6705d68c5694768d4c20b90dc
Copyright registration time
2026-07-31T15:16:31+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T15:27:29Z
Bitcoin block
960422
Canonical record hash
sha256:8b85745660df0425b3260350cf2b1168796e9c8bc33d477a0946829f49649db8

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.