Que Hacer

Recording by Sandra Cires.

Recording identifiers

ISRC
ITC780800318
CopyrightID (CopyrightChains transaction hash)
0x7f2f1ecc87b20b8ad4eb340f1d560f884ae07ef97d5d9c71ef7665258cdc29fd
Copyright registration time
2026-07-06T05:03:41+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-06T06:56:49Z
Bitcoin block
956889
Canonical record hash
sha256:e6796a0af5711ab1fc98f41836fac139998ec2cbad664e42586f92d0f0155cd4

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.