Fyra japanska dikter - Sorgesång

Recording by Karl-Erik Welin.

Recording identifiers

ISRC
SE4011400114
CopyrightID (CopyrightChains transaction hash)
0x9e5b6eb1ec8da537619540097762df5384592903bd76dd4435839469fc4f8734
Copyright registration time
2026-07-31T19:53:34+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T20:22:46Z
Bitcoin block
960459
Canonical record hash
sha256:b269e5daaddcf3a1fd1b9a88d74b99847a36d85854386ec5da9b57c615987edd

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.