OpenTechnical

OT-2026-000006194

Publication integrity record

Porous face vacuum gripper, four zone face, pump fed, contact triggered, vented after 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-2026-000006194) never changes.

Identity and time

Publication numberOT-2026-000006194 · never reused
Internal UUID01a0a952-8755-70e6-9dbd-ecf29d985828 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:25:53.241236Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006194
StatusPUBLIC

Content hashes

Canonical texta36aba08efd11a158c4bb76a33a83398a481defa23e712feba5225d441615838
Markdownf8c51f72e9ed3d31bc524721fc7e09cea0fc99b975e1597734fc9f054dd596ed
PDF
Publication page06e517cd7fc1aaab947c9c5eab8c1530d658d5028ca4f54440e3a7b1ea8f9c9d
Manifest6d55ab3b033621c0a2c7e11087a7fd45f4d8823b3a8670cfcbea491a3066cb49

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
SignaturegF1JMyEk8F0TSRWyx1nRqqqL4xavXNdyjeAf94TUwdk10qy5ykuejmDnN3Q8gV5Yj6u8NU+Oktonn4XhN2StCA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:27:03Z
batch OT-TS-2026-W38-012 · RFC 3161 token · inclusion proof
root dbe93cb6b2158496df2f60f3b6822537...

Independent retrieval

2026-09-16T08:30:16.636101ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006194
observed 06e517cd7fc1aaab947c9c5eab8c1530...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:30:16.623064ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006194/manifest.json
observed 6d55ab3b033621c0a2c7e11087a7fd45...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:30:16.487044ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006194/publication.md
observed f8c51f72e9ed3d31bc524721fc7e09ce...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:30:16.468621ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006194/publication.txt
observed a36aba08efd11a158c4bb76a33a83398...
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.