OpenTechnical

OT-2026-000004331

Publication integrity record

Porous face vacuum gripper, three zone face, six outlet manifold, three stage ejector, pressure verified

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-2026-000004331) never changes.

Identity and time

Publication numberOT-2026-000004331 · never reused
Internal UUID01a0a914-3f03-7bd6-8cf3-006cea72ae82 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:17:51.493640Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000004331
StatusPUBLIC

Content hashes

Canonical text0c354f0e1b609395d5a20d7424d1c32f69e3e88149ab591bbd84765dbe7b43a2
Markdown048ff2ec0721e35517f0c834ec99c8048df5e666d0d421f13df013113d6ece94
PDF
Publication page0b96170567c8c3bf53a148d7e0208a2ecf6fe99f45cd1dc659a75cca5277e3b3
Manifestc48b8e4644131c0dd211851518047a5e911e28891deb28a884b883699e1b391f

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
SignaturepRdLTSrPgjIInOMH1MRknMVf3jHxtNTvKvc3vgseOMb71Xs8YdZWC0xdq8BLwOwWDg9WMv3SaumqbaHxEG2hBQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T07:27:02Z
batch OT-TS-2026-W38-009 · RFC 3161 token · inclusion proof
root aada101caea153fd76622afa3661a5b8...

Independent retrieval

2026-09-16T07:20:09.973317ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004331
observed 0b96170567c8c3bf53a148d7e0208a2e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:20:09.960065ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004331/manifest.json
observed c48b8e4644131c0dd211851518047a5e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:20:09.943665ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004331/publication.md
observed 048ff2ec0721e35517f0c834ec99c804...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:20:09.927362ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004331/publication.txt
observed 0c354f0e1b609395d5a20d7424d1c32f...
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.