ISRC QZHN72027806
Verified recording
QZHN72027806 is “Once Again” by On Piano,
registered on the CopyrightChains blockchain with CopyrightID
0x399dc87a99cdfc8364601e27941bf90ff0b3df71fd137589f57aed2438683469 and independently timestamped
in Bitcoin block 953513 on 2026-06-13.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN72027806.
Recording identifiers
- ISRC
- QZHN72027806
- Title
- Once Again
- Artist
- On Piano
- CopyrightID (CopyrightChains transaction hash)
0x399dc87a99cdfc8364601e27941bf90ff0b3df71fd137589f57aed2438683469
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-06-13T12:47:07+00:00
- Bitcoin block
- 953513
- Canonical record hash
sha256:1c8dd9f415b3a799278589c47136788cbe9882b78761d11df421e600f381007a- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN72027806
- Bitcoin block existence check
- https://blockstream.info/api/block/953513