OpenTechnical

OT-2026-000090292

Publication integrity record

Two cup vacuum gripper, two zone face, 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-2026-000090292) never changes.

Identity and time

Publication numberOT-2026-000090292 · never reused
Internal UUID01a0ae9c-4290-71dd-ae98-dfde67bf2992 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:31.390046Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090292
StatusPUBLIC

Content hashes

Canonical text8e04d91cecc385eb269603a3fd56a4ed0b2f8362887c1ef8cb57f4d9c35e176b
Markdown82a54dd2e7f3947a10e5997dc26d749334481addd6bb2e61b41ee85bdba27814
PDF
Publication pagec2db2173ea6316bd90e2e86f4befd6d831f35274fa4d19c788f8c2983fe85adf
Manifest8f79cca3289ef6b93c8dd4cfbf4819fb57e6ee241622f23228678973b1ee276e

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
Signature7QHlU2VRAd3fBLqK47gjOMeWU8f3uV0WK5oG6cfG76OXhRt3BU41F8zktnx3wfPd80TtjnFieF0vcW1K3Ef1CA==
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

2026-09-17T09:46:22.657196ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090292
observed c2db2173ea6316bd90e2e86f4befd6d8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:22.638134ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090292/manifest.json
observed 8f79cca3289ef6b93c8dd4cfbf4819fb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:22.620792ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090292/publication.md
observed 82a54dd2e7f3947a10e5997dc26d7493...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:22.604595ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090292/publication.txt
observed 8e04d91cecc385eb269603a3fd56a4ed...
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.