ISRC GBKQU2125910
Verified recording
GBKQU2125910 is “Siz K.A.” by Daisuke Matsushima,
registered on the CopyrightChains blockchain with CopyrightID
0x91e1c17120008210c87905a267e9d3de8aa1f46448c9a474e8ff5d7b9fd38399 and independently timestamped
in Bitcoin block 960348 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBKQU2125910.
Recording identifiers
- ISRC
- GBKQU2125910
- Title
- Siz K.A.
- Artist
- Daisuke Matsushima
- CopyrightID (CopyrightChains transaction hash)
0x91e1c17120008210c87905a267e9d3de8aa1f46448c9a474e8ff5d7b9fd38399
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T05:17:02+00:00
- Bitcoin block
- 960348
- Canonical record hash
sha256:d52788e4c625bde4abca1319ae017271c2906f2801fba5f200e31bf7e6717e81- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBKQU2125910
- Bitcoin block existence check
- https://blockstream.info/api/block/960348