OpenTechnical

OT-2026-000028879

Publication integrity record

Foam pad vacuum gripper, four zone face, per zone isolation, three stage ejector, pulsed blow-off before set-down

This page is the evidence record. It changes as evidence arrives: a trusted timestamp, an independent retrieval, a custody deposit. The disclosure itself (/p/OT-2026-000028879) never changes.

Identity and time

Publication numberOT-2026-000028879 · never reused
Internal UUID01a0ae73-2a9d-7376-b63c-c7c13314de77 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:38.288761Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028879
StatusPUBLIC

Content hashes

Canonical text21df5ea5cd783eeef52f4ecc0edf2d8706ce2bd6422431e3c2e2dab2002a32c1
Markdown0804c6c3217f5f41639f78a7ddf2d77cc42af82f387c391480ac9715457db31d
PDF
Publication pageee5030aa6e55e08d54f539aee3efda007c09ec433488ec7ddbc211034859b514
Manifeste703f7adba524df41810a1fc9bea9effcec5aadf1c315444df326ef91749289c

SHA-256, lowercase hex, over the exact bytes of each published file. Every figure is hashed individually in the manifest.

Manifest signature

AlgorithmEd25519 · key OT-SIGN-2026-01 · Verified
SignatureGxHG4sa/PC8GdK4l74h8De2faQywS/TLxyTMqds5Tp8pEZQNGnf7H3bf8a5s1b408Z+TraDp9y+J6YUACPVhBw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T08:20:14.243568ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028879
observed ee5030aa6e55e08d54f539aee3efda00...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:20:14.219309ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028879/manifest.json
observed e703f7adba524df41810a1fc9bea9eff...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:20:14.200603ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028879/publication.md
observed 0804c6c3217f5f41639f78a7ddf2d77c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:20:14.034111ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028879/publication.txt
observed 21df5ea5cd783eeef52f4ecc0edf2d87...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139

Requested from infrastructure separate from the publication system, over the public internet, with no credential. A MATCH means an ordinary internet client could fetch the publication and received exactly the bytes recorded above.

Independent archive

External archivePending Canonical URLs are submitted to an independent archive in batches.

A capture held by an outside archive is evidence that does not depend on OpenTechnical continuing to exist. It supplements the records above; it does not replace them.

Third-party custody

Custody packagePending Custody packages are produced weekly.