ISRC GBZPZ0600011
Verified recording
GBZPZ0600011 is “Past Imperfect Future Tense” by Calibre,
registered on the CopyrightChains blockchain with CopyrightID
0xe974a2736df859e752ea6e3f01da0fa674ccf604ea6119427ac4e199cfc87d98 and independently timestamped
in Bitcoin block 960344 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBZPZ0600011.
Recording identifiers
- ISRC
- GBZPZ0600011
- Title
- Past Imperfect Future Tense
- Artist
- Calibre
- CopyrightID (CopyrightChains transaction hash)
0xe974a2736df859e752ea6e3f01da0fa674ccf604ea6119427ac4e199cfc87d98
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T04:14:58+00:00
- Bitcoin block
- 960344
- Canonical record hash
sha256:65c313b28eadc63b662682d4b0b2d6bdb7d20d3274884a7c3657cf72caf98ebb- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBZPZ0600011
- Bitcoin block existence check
- https://blockstream.info/api/block/960344
Full record
Track page: Past Imperfect Future Tense · Machine-readable JSON-LD