OpenTechnical

OT-2026-000091120

Publication integrity record

Foam pad vacuum gripper, four zone face, common isolation valve, three stage ejector, 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-2026-000091120) never changes.

Identity and time

Publication numberOT-2026-000091120 · never reused
Internal UUID01a0ae9c-f16b-7bde-8337-48526529d531 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:16.158740Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091120
StatusPUBLIC

Content hashes

Canonical text69412e889b90cda693f5b0797e182fcb8b66c0aa2f6856fed7cdb446714419b7
Markdown7ddb8aad84d6368fb4f061959b1bacf4b94a6f12f10cc0c0fb87df9a1fdc99d4
PDF
Publication pageddda22e147edc3dfe14509b1e689fd023f5496d6361c394d2de0bdec708f5261
Manifestd4489d14d5731cdf7838eb36c016eb167d189ccef999946a79fc312976132cb7

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
Signaturevyo0X3drsQKLegkdXGSclEkcd74qh5aGHtX2cp4u2kaxl20eDxsYT3fPNWpJEDJ4iqwR0VkKetraT45qDETRAg==
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

2026-09-17T09:43:16.431012ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091120
observed ddda22e147edc3dfe14509b1e689fd02...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:16.415076ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091120/manifest.json
observed d4489d14d5731cdf7838eb36c016eb16...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:16.399576ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091120/publication.md
observed 7ddb8aad84d6368fb4f061959b1bacf4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:16.383215ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091120/publication.txt
observed 69412e889b90cda693f5b0797e182fcb...
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.