ISRC QZ9QQ2300590
Verified recording
QZ9QQ2300590 is “Cosas Cambian” by Los Del Puerto,
registered on the CopyrightChains blockchain with CopyrightID
0x0f21d3b753e702214c4d74b7225483570a759c2cab0687484f97fdb1da1de5e7 and independently timestamped
in Bitcoin block 956304 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ9QQ2300590.
Recording identifiers
- ISRC
- QZ9QQ2300590
- Title
- Cosas Cambian
- Artist
- Los Del Puerto
- CopyrightID (CopyrightChains transaction hash)
0x0f21d3b753e702214c4d74b7225483570a759c2cab0687484f97fdb1da1de5e7
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:55:08+00:00
- Bitcoin block
- 956304
- Canonical record hash
sha256:a77987ecf0271baea9fdc15b230624cdeebe7de15e3afdfd9e16d94e020dec38- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ9QQ2300590
- Bitcoin block existence check
- https://blockstream.info/api/block/956304