OpenTechnical

OT-2026-000091582

Publication integrity record

Foam pad vacuum gripper, two zone face, four 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-2026-000091582) never changes.

Identity and time

Publication numberOT-2026-000091582 · never reused
Internal UUID01a0ae9c-f16e-780b-9888-ee94087c9e4f · 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-2026-000091582
StatusPUBLIC

Content hashes

Canonical text278a7086ec8ae1ac2db2f698b93c476bdabedd20ec1ef4d71488033d1ba5ab4e
Markdown20f7e6bb8aed1c55497bdc351b245bcb7691e66fe43f02e895ee2c52f8907677
PDF
Publication page63d8af2449e43f5f11cd5e7604f338558d775227bbfcb2989b7b2809b0caba1d
Manifest702c042b51d0ea92522e39d8828e25cf5abc5f98262fc050f09edbda4bfafea8

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
SignatureZ5SUIGk1TC+jci1q5Lx9IOOj5x/b52iX3PCW1okysS4rdpCCkfx0DytxiqkTdpt69h9CvGybfk6w6ikm0dUzCA==
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

2026-09-17T09:43:51.299788ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091582
observed 63d8af2449e43f5f11cd5e7604f33855...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:51.283366ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091582/manifest.json
observed 702c042b51d0ea92522e39d8828e25cf...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:51.266988ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091582/publication.md
observed 20f7e6bb8aed1c55497bdc351b245bcb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:51.249892ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091582/publication.txt
observed 278a7086ec8ae1ac2db2f698b93c476b...
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.