ISRC QZTBB2264633
Verified recording
QZTBB2264633 is “To my son” by John Mackk,
registered on the CopyrightChains blockchain with CopyrightID
0x3fb5f60fd1f5737160e81ddbb75a6e475754050b7817a8b235464a052e2828e1 and independently timestamped
in Bitcoin block 960250 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTBB2264633.
Recording identifiers
- ISRC
- QZTBB2264633
- Title
- To my son
- Artist
- John Mackk
- CopyrightID (CopyrightChains transaction hash)
0x3fb5f60fd1f5737160e81ddbb75a6e475754050b7817a8b235464a052e2828e1
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T11:13:28+00:00
- Bitcoin block
- 960250
- Canonical record hash
sha256:3b6730907fc8dcd956a5d53800353d271c6beb3feb85f16f20491cece54c61ce- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTBB2264633
- Bitcoin block existence check
- https://blockstream.info/api/block/960250