Greeting Cards, Op. 170: No. 10, Tanka (Japanese Song) on the Name of Isao Takahashi

Recording identifiers

ISRC

HKI192233004

Release date of the album this recording appears on

2023-04-14

CopyrightID (CopyrightChains transaction hash)

0x648f050549159ec28f36aa54440ed1a4dd6aa04bf93de718a961ec58babec7f7

Copyright registration time

2026-07-31T16:36:44+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T17:29:52Z

Bitcoin block

960441

Canonical record hash

sha256:8027933eb31e99f707988b9ba1362e32f3c31cb9f2422d84a2f18e1b42bcdb0b

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC HKI192233004

What this proof establishes

This recording was released in 2023. ProofProfile's artist catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and this recording entered the record through cc-db-prod's ISRC-linked registration. Its provenance rests on the dates stated above rather than on the era of that source corpus.

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.