ISRC QZTB92339521
Verified recording
QZTB92339521 is “Nuestra ciudad” by 1111,
registered on the CopyrightChains blockchain with CopyrightID
0xf727c58e1c1f68ba9484345505dc1dfb46fa9974abd3f7eaee22cdda79bbddf9 and independently timestamped
in Bitcoin block 960105 on 2026-07-29.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB92339521.
Recording identifiers
- ISRC
- QZTB92339521
- Title
- Nuestra ciudad
- Artist
- 1111
- CopyrightID (CopyrightChains transaction hash)
0xf727c58e1c1f68ba9484345505dc1dfb46fa9974abd3f7eaee22cdda79bbddf9
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T12:35:17+00:00
- Bitcoin block
- 960105
- Canonical record hash
sha256:080915dd1d0796cb134ff883096bae1ff95116fe0df60c096a14accb36f649f4- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB92339521
- Bitcoin block existence check
- https://blockstream.info/api/block/960105