I Used To Could

Recording by Mark Knopfler.

Recording identifiers

ISRC
GBUM71203450
CopyrightID (CopyrightChains transaction hash)
0x506a8e6b7405e39e30fcac46da460bcabdfcb49c683088cef400caaf5626ce4d
Copyright registration time
2026-06-07T08:07:25+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:9ea679129a15a3d2c4dfc331c188f1cc0765c3c403e7a49eb39e23315f4402c3

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.