Back in the Day

Recording by Christina Aguilera.

Recording identifiers

ISRC
USRC10600408
CopyrightID (CopyrightChains transaction hash)
0xda00584e5966e2c4e1204859100dc66c560c5ed5d49a52b5f905cb0289869286
Copyright registration time
2026-06-06T09:04:33+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:fc938322736cb810fd7c062460c2ac3525a97aee2a1669b91d48165508091215

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.