ISRC QM42K2093622
Verified recording
QM42K2093622 is “Nostalgic” by Kakeru,
registered on the CopyrightChains blockchain with CopyrightID
0x0cd1fb375e3df875bb045ac8aa4144ade4e574d4102e7975a71c03e40d1482e5 and independently timestamped
in Bitcoin block 957120 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM42K2093622.
Recording identifiers
- ISRC
- QM42K2093622
- Title
- Nostalgic
- Artist
- Kakeru
- CopyrightID (CopyrightChains transaction hash)
0x0cd1fb375e3df875bb045ac8aa4144ade4e574d4102e7975a71c03e40d1482e5
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:22:41+00:00
- Bitcoin block
- 957120
- Canonical record hash
sha256:81a4cfdd884c06b35b0605e473de77e31baca47c0bc88236a53619b940060174- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM42K2093622
- Bitcoin block existence check
- https://blockstream.info/api/block/957120