練習失去

Recording by Wanfang.

Recording identifiers

ISRC
TWAN31501261
CopyrightID (CopyrightChains transaction hash)
0xa16e0a8b4d31eb18d54b36d7b26c68c1437d5e9189e8d2de636f1debfc5caa02
Copyright registration time
2026-07-07T23:04:37+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:39:04Z
Bitcoin block
957122
Canonical record hash
sha256:f00f60637cbaed15045a5fb2e90aeca5d7927efa0dac0eec6150709807879502

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.