ISRC QZF452012211
Verified recording
QZF452012211 is “저 하늘 걸고” by Sung Si Kyung,
registered on the CopyrightChains blockchain with CopyrightID
0x57c5f3870cb6d290b5c74459332a35e2e7832283c790a44199738bd0208f140f and independently timestamped
in Bitcoin block 960448 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZF452012211.
Recording identifiers
- ISRC
- QZF452012211
- Title
- 저 하늘 걸고
- Artist
- Sung Si Kyung
- CopyrightID (CopyrightChains transaction hash)
0x57c5f3870cb6d290b5c74459332a35e2e7832283c790a44199738bd0208f140f
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T18:48:12+00:00
- Bitcoin block
- 960448
- Canonical record hash
sha256:7ed8f54548fe12b2ab3757334a36f09fefdcba7a318edaf892f93e90955a44d2- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZF452012211
- Bitcoin block existence check
- https://blockstream.info/api/block/960448