Perfect Stranger

Recording by Marta Sánchez.

Recording identifiers

ISRC
ES5709901538
CopyrightID (CopyrightChains transaction hash)
0xe69dfdd5d2e08261ebf5a0a14c138c174faf9935ef91de73efb3497a498f075c
Copyright registration time
2026-07-07T06:13:05+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T08:56:20Z
Bitcoin block
957145
Canonical record hash
sha256:a25e0a24f06c827863a062803e2fd48aa9e40bdb4472aa76c407804527df4134

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.