OpenTechnical

OT-2026-000091905

Publication integrity record

Two cup vacuum gripper, two zone face, six outlet manifold, pump 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-2026-000091905) never changes.

Identity and time

Publication numberOT-2026-000091905 · never reused
Internal UUID01a0ae9d-43ba-7d8c-89f9-b2f17f582300 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:37.256105Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091905
StatusPUBLIC

Content hashes

Canonical text7e73ce30d249eda45ffedc227d3fcd2397e62493a5614ad104a62c6f9bcea279
Markdownad91748f79af4aedc7fde42cb27ebaa4eeb2773e1352a4ed89ab803a6677806d
PDF
Publication page3cb00c1e33d5d9ebbd85bc5d8a7769a1a4b98f2e34733a9ba46c19161778f185
Manifest14f66c8ba07ec52c7c7aac5b39cd810bf50f5cf0949bc37a318702fb5753f123

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
SignaturetKybxirZTI8mMBj12Wy85dqj1jjKrw/MOw9pW2pgRiwwldki7Soe/S+d9CbuBggQRasVTxnjmOmzseXj3bySAA==
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

2026-09-17T09:42:50.556894ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091905
observed 3cb00c1e33d5d9ebbd85bc5d8a7769a1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:50.540258ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091905/manifest.json
observed 14f66c8ba07ec52c7c7aac5b39cd810b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:50.521053ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091905/publication.md
observed ad91748f79af4aedc7fde42cb27ebaa4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:50.504196ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091905/publication.txt
observed 7e73ce30d249eda45ffedc227d3fcd23...
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.