OpenTechnical

OT-2026-000074190

Publication integrity record

Two bellows cup vacuum gripper, two outlet manifold, pump fed, supply line pressure sensor, vented 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-2026-000074190) never changes.

Identity and time

Publication numberOT-2026-000074190 · never reused
Internal UUID01a0ae93-7178-7181-bbf7-9316b14d7bd2 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:53.574555Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000074190
StatusPUBLIC

Content hashes

Canonical text6705d7b26dfa414c5df53f04abd8f014f73244ed15a6f685f362fc662e3b9478
Markdown44c028d37abbb0b75a317d983bf6fdeba47d950f796815a6ea5ad3f97b5f4bef
PDF
Publication page9b0c311fa851c52c8f2a4c9ba1964a03f8d772e9b59362907a611097c22ff5ab
Manifest41859b79dc728839e52dce6667c6b5f64b14a46f7a4f0cb878fbbc9e91e774de

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
SignatureU+mok7gplwzuKnllvKbem0WkdSCDufxg1o0m1SYrOF3DGWFNCTiCvJdrpj2bdPb9dMDRhx/lZNnzjkQUBxEuCA==
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

2026-09-17T10:19:02.660874ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074190
observed 9b0c311fa851c52c8f2a4c9ba1964a03...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:02.643915ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074190/manifest.json
observed 41859b79dc728839e52dce6667c6b5f6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:02.626825ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074190/publication.md
observed 44c028d37abbb0b75a317d983bf6fdeb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:02.609913ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074190/publication.txt
observed 6705d7b26dfa414c5df53f04abd8f014...
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.