ISRC QZNWR2164465
Verified recording
QZNWR2164465 is “Old MacDonald Had a Farm” by Andrew Holdsworth,
registered on the CopyrightChains blockchain with CopyrightID
0xf6e00f8b0cee1b73d35c078e4fe5af5ceaab07660dafc521ec458ce6b38769ae and independently timestamped
in Bitcoin block 960207 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWR2164465.
Recording identifiers
- ISRC
- QZNWR2164465
- Title
- Old MacDonald Had a Farm
- Artist
- Andrew Holdsworth
- CopyrightID (CopyrightChains transaction hash)
0xf6e00f8b0cee1b73d35c078e4fe5af5ceaab07660dafc521ec458ce6b38769ae
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T04:47:22+00:00
- Bitcoin block
- 960207
- Canonical record hash
sha256:280a0f154897c8bb2d1f9fcfe5f2b25fd70726acf9e4b07c0dbc72884222cfbb- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWR2164465
- Bitcoin block existence check
- https://blockstream.info/api/block/960207
Full record
Track page: Old MacDonald Had a Farm · Machine-readable JSON-LD