The Time Curve Preludes: No. 2

Recording by William Duckworth.

Recording identifiers

ISRC
ITP901300009
CopyrightID (CopyrightChains transaction hash)
0x193fee7d5cef3a0768fd563d913bc57d13114924c12b12b9f0591f0aa43cacc6
Copyright registration time
2026-06-25T16:57:51+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T08:56:20Z
Bitcoin block
957145
Canonical record hash
sha256:1b90c266dd523752fad41bf49343fa222475b6db930ce6d0a5dc4d3955577326

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.