OpenTechnical

OT-2026-000091033

Publication integrity record

Three bellows cup vacuum gripper, three zone face, common isolation valve, plant vacuum fed, pressure sensor per zone, sustained blow-off before set-down, on a tool changer

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-2026-000091033) never changes.

Identity and time

Publication numberOT-2026-000091033 · never reused
Internal UUID01a0ae9c-c012-7bbf-9588-1bfb6ece1c21 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:03.518217Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091033
StatusPUBLIC

Content hashes

Canonical textb24866b3db7c8531d79434d220230933ee3f15caaee128b5a807714c97d940d8
Markdownb98ec80490d54c3d8837445bc0bd8f4abbf693c7efcc13506de3be742e5d64aa
PDF
Publication page1305ca901c52a6c24b181d46fc9aa13d12c5581ba2296a889970f2055f8cde28
Manifest49d5c86607c4a4a8dc1b6aa76cf0c9748cd4a1e6b706a7d311d350ae018fbe54

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
SignatureNpeJgciMEF3B1LP6RMwaVtVPxlUvI9XDKrLsVm2MvcPeQg6zBnpou5zs+20eMZr2AJhIG4bS0vE0cigbIbXEDg==
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

2026-09-17T09:44:16.631700ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091033
observed 1305ca901c52a6c24b181d46fc9aa13d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:16.613932ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091033/manifest.json
observed 49d5c86607c4a4a8dc1b6aa76cf0c974...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:16.596006ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091033/publication.md
observed b98ec80490d54c3d8837445bc0bd8f4a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:16.577524ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091033/publication.txt
observed b24866b3db7c8531d79434d220230933...
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.