とけいの うた

Recording by 米澤円.

Recording identifiers

ISRC
JPKI01719624
CopyrightID (CopyrightChains transaction hash)
0x4c57efbcb267e448f3effe2cdc5691244033ca23f5d5642f2b409d6834666e23
Copyright registration time
2026-07-07T04:22:20+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:557a00185bb2717d5799cc07f9f9e61ce8af989c97db3bb4b7a7ae3e8b96031b

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.