OpenTechnical

OT-2026-000050231

Publication integrity record

Two cup vacuum gripper, two zone face, four outlet manifold, pump fed, pressure sensor per zone, 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-2026-000050231) never changes.

Identity and time

Publication numberOT-2026-000050231 · never reused
Internal UUID01a0ae82-5c46-7b0b-a63a-1565df0b5dd2 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:36:14.042293Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000050231
StatusPUBLIC

Content hashes

Canonical text64dac95fd9edfa8aa498a66269b0e2a23be60b8ce83c4ba781ca4fef916fa206
Markdown10f07a6d08bf9927f10f0ca1db026bd555272b462c1f6a92b23ecc9123566c7a
PDF
Publication page5bccab81bedf8c005b74addd78018cdb8b58b4a81410cbdb6974ccc3e80db0f8
Manifest86c400b5b99045058bb212b37e50f1d6d1476b8f8a7e65d7998cf596b7bd94e6

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
SignatureyG1cfHitAPhHoiDV89TW1HUK30+RwRSFNj889lUSF9dhpJkUcZhQv4fbhp8/HunuXjwGSjalCkXDyKjdzxJZDA==
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

2026-09-17T11:01:13.541824ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050231
observed 5bccab81bedf8c005b74addd78018cdb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:13.525871ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050231/manifest.json
observed 86c400b5b99045058bb212b37e50f1d6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:13.509968ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050231/publication.md
observed 10f07a6d08bf9927f10f0ca1db026bd5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:13.492786ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050231/publication.txt
observed 64dac95fd9edfa8aa498a66269b0e2a2...
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.