ISRC QZMZ92156624
Verified recording
QZMZ92156624 is “4:20” by 21DX,
registered on the CopyrightChains blockchain with CopyrightID
0x87f74418001abb23a95dbaa73f847aaca46b44a3e7122fa28e2e1a859e1d5175 and independently timestamped
in Bitcoin block 957118 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMZ92156624.
Recording identifiers
- ISRC
- QZMZ92156624
- Title
- 4:20
- Artist
- 21DX
- CopyrightID (CopyrightChains transaction hash)
0x87f74418001abb23a95dbaa73f847aaca46b44a3e7122fa28e2e1a859e1d5175
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:ca3fcf3807e9f65b3f711cedc61a0298d0d46f697370d9547ef31f88dc30129a- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMZ92156624
- Bitcoin block existence check
- https://blockstream.info/api/block/957118