OpenTechnical

OT-2026-000077348

Publication integrity record

Two bellows cup vacuum gripper, two outlet manifold, plant vacuum fed, vented after 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-2026-000077348) never changes.

Identity and time

Publication numberOT-2026-000077348 · never reused
Internal UUID01a0ae94-f509-785b-845b-847e02595010 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:32.796581Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000077348
StatusPUBLIC

Content hashes

Canonical textd7727740ac3a7955d00fda1bd682dfa208de80e33009d1c4e9e77c609c135b81
Markdownb04257e640453e60e9e818ace174d2a6151bb93c63fcf2a7d8d0e67bb0535d9a
PDF
Publication page9ee94f7f149d559ace630460523e958457be1ad23281cbee600d6b2ea000ee64
Manifest9f0b6108a8916dc02f75e1945d5c059dfd4dbb32e0b6a40148d72788d3d4ec3d

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
Signaturen+qpWoh0M1piw2kPckqoUne86zoYYFdfEu3PDz9VKalbKhKFiugaAZjp+3YfFEwX1Dy5ZScJ1u6nzm5Mcc60Cw==
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

2026-09-17T10:08:59.428203ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077348
observed 9ee94f7f149d559ace630460523e9584...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:59.407156ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077348/manifest.json
observed 9f0b6108a8916dc02f75e1945d5c059d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:59.387726ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077348/publication.md
observed b04257e640453e60e9e818ace174d2a6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:59.367149ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077348/publication.txt
observed d7727740ac3a7955d00fda1bd682dfa2...
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.