OpenTechnical

OT-2026-000005791

Publication integrity record

Porous face vacuum gripper, four zone face, pump fed, vented before set down, open cell

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-2026-000005791) never changes.

Identity and time

Publication numberOT-2026-000005791 · never reused
Internal UUID01a0a945-0062-7d04-8ced-3b07e9b1a681 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:11:06.725028Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000005791
StatusPUBLIC

Content hashes

Canonical text93ccb259cb9e784d7514564c13fedcbff977010d03cf5398470385b66d108910
Markdown7c4263a470c777c93c063b0b679737147b9280b42e393eefe0cf384932abbcbf
PDF
Publication page267eca4f91a06a18c97c994ce06b92b1008a2801d4dad866b5df50d3f3714ba4
Manifestb13cb0be83139b38242a42766270f89521a1798a75bed1134615bb03b7846093

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
Signature8v5zeJ81a791gdhPhC4Nng074/G7O0ioUEFh2Paf2C6VIletps8qN/pVzSx02MvMz5WVis3LMUuha3KvajgYBA==
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

2026-09-16T08:20:32.489495ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005791
observed 267eca4f91a06a18c97c994ce06b92b1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:32.477974ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005791/manifest.json
observed b13cb0be83139b38242a42766270f895...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:32.466080ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005791/publication.md
observed 7c4263a470c777c93c063b0b67973714...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:32.453289ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005791/publication.txt
observed 93ccb259cb9e784d7514564c13fedcbf...
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.