Triangle Wave

Recording by 村田あゆみ.

Recording identifiers

ISRC
JPK630905513
CopyrightID (CopyrightChains transaction hash)
0x216b9b1c26a0eacc1d92b101bc86a0e4dd36e2f56d8c649957c8054113937ac8
Copyright registration time
2026-07-07T06:12:47+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:53:27Z
Bitcoin block
957124
Canonical record hash
sha256:2c188b734b0944495b19d6b3a259c4f227d86196e6dc8fcc8b1fc7a8ddeb1ebe

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.