OpenTechnical

OT-2026-000038491

Publication integrity record

Three bellows cup vacuum gripper, three zone face, three outlet manifold, pump fed, supply line pressure sensor, pulsed blow-off before set-down, on a tool changer

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-2026-000038491) never changes.

Identity and time

Publication numberOT-2026-000038491 · never reused
Internal UUID01a0ae78-2d53-79cc-a0d0-832530796905 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:25:06.661829Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000038491
StatusPUBLIC

Content hashes

Canonical textcef007f317ec6dc59071316265ff2aedd69ba84fd7a40d0e7f842f230b51d060
Markdown3440591508c94cbf287f8832879bd63ec809b00d67ed0630f2d5a0dfffa16823
PDF
Publication page6852ee06ac7a2b8add3ae825c08ed81d55614fcf3a5ee4d786c5cd13c61b2caa
Manifest234b4baf572bdb12d261c90811b3ec923e1ffd1bf1b219a7843eca0e0729cb30

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
SignaturefZGylJdq588H9U9bV+5Ogdb0ldSSkXN7j1YpZvfkuzqxPpd9YCkGwR+RjZSsfaneiqXPlZo522TttwJDXe81Bg==
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

2026-09-17T11:22:44.020267ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000038491
observed 6852ee06ac7a2b8add3ae825c08ed81d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:22:44.001594ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000038491/manifest.json
observed 234b4baf572bdb12d261c90811b3ec92...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:22:43.983135ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000038491/publication.md
observed 3440591508c94cbf287f8832879bd63e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:22:43.962912ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000038491/publication.txt
observed cef007f317ec6dc59071316265ff2aed...
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.