OpenTechnical

OT-2026-000086157

Publication integrity record

Four bellows cup vacuum gripper, four zone face, per zone isolation, pump fed, 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-2026-000086157) never changes.

Identity and time

Publication numberOT-2026-000086157 · never reused
Internal UUID01a0ae99-e82c-70c1-a39e-907d4731ff27 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:01:57.178584Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000086157
StatusPUBLIC

Content hashes

Canonical texteae443cb1c629d9f832202056390f40fcea57f7cc059ddd772b0f79b3787bccc
Markdown4d3c827e06cb45fed780e6bed411281bfc1a0c08a1ea3b1ed7b74b0bd8f4a136
PDF
Publication page54c955b3c3b0c382fb039535a1126cd42366baca72a042350c75006ca0bc53b6
Manifestb108180f0030993d652d9963c6497611d1cd73b3b6ecef2d26bf745cb4131362

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
SignatureJyJMAgbB2NwEcTzSVTKR9VCJDZvDiX5olH+f7XtUrJYy+yc9mxDZaq4OfXKEgyqXFIVzQkKCMNqJW70f9VUrBQ==
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

2026-09-17T09:53:49.632649ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086157
observed 54c955b3c3b0c382fb039535a1126cd4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:53:49.614772ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086157/manifest.json
observed b108180f0030993d652d9963c6497611...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:53:49.597048ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086157/publication.md
observed 4d3c827e06cb45fed780e6bed411281b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:53:49.579712ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086157/publication.txt
observed eae443cb1c629d9f832202056390f40f...
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.