ISRC QZWFQ2439635
Verified recording
QZWFQ2439635 is “Humdinger” by Eff Yoo,
registered on the CopyrightChains blockchain with CopyrightID
0x26612dbee15f925d0c2c17935191a91b7119873da025625e2047c4d25e320c24 and independently timestamped
in Bitcoin block 960410 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWFQ2439635.
Recording identifiers
- ISRC
- QZWFQ2439635
- Title
- Humdinger
- Artist
- Eff Yoo
- CopyrightID (CopyrightChains transaction hash)
0x26612dbee15f925d0c2c17935191a91b7119873da025625e2047c4d25e320c24
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T13:50:38+00:00
- Bitcoin block
- 960410
- Canonical record hash
sha256:7de257ad9048f5a3f48e5f86c778a116845f808cb296a381b2bdd5e1b4219a69- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWFQ2439635
- Bitcoin block existence check
- https://blockstream.info/api/block/960410