OpenTechnical

OT-2026-000091719

Publication integrity record

Four bellows cup vacuum gripper, four zone face, four outlet manifold, pump fed, pressure sensor per zone, sustained 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-2026-000091719) never changes.

Identity and time

Publication numberOT-2026-000091719 · never reused
Internal UUID01a0ae9d-43b9-7034-9f3e-34e2f533b0bc · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:37.256105Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091719
StatusPUBLIC

Content hashes

Canonical texted80c7f9d6683e8f64386ed34fe5a9027cc44733427dea61eb352479821701a6
Markdown12a5f69e90f71ae60c943da7634777011cff53177b67f27283ca8982f2c22007
PDF
Publication page00520bbd6e3d3906ae63eb281a1e0cbd5da3b06f3e678db997f6f7aba882414a
Manifest5be4d27d16938dedc3f17a3a63a0f24e4f9d60080fd60b63004c0d4c4bdc1fea

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
Signature3CyjQri+DMwr+HH4ZU/DoTJ5LAumL4HcyDpxtIDCSvles/MSF8yatxopGMXTnAB6g/GeJKdPvi9kLtcPauf4CA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T09:42:06.521533ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091719
observed 00520bbd6e3d3906ae63eb281a1e0cbd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:06.503795ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091719/manifest.json
observed 5be4d27d16938dedc3f17a3a63a0f24e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:06.487730ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091719/publication.md
observed 12a5f69e90f71ae60c943da763477701...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:06.470275ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091719/publication.txt
observed ed80c7f9d6683e8f64386ed34fe5a902...
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.