OpenTechnical

OT-2026-000081931

Publication integrity record

Two bellows cup vacuum gripper, two zone face, four outlet manifold, plant vacuum fed, 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-2026-000081931) never changes.

Identity and time

Publication numberOT-2026-000081931 · never reused
Internal UUID01a0ae97-0f76-7283-b2a2-144149c2dffc · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:50.648824Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081931
StatusPUBLIC

Content hashes

Canonical text0604dba192f859b5e63f796d6ba1189edf744fd3b70967253ad5b551bbadc33c
Markdownf58abe40dcfd18f7e43d27baca4c83d6ed02e2e5c37ce432542073cd506ce125
PDF
Publication page251faf57e2c5cb37e4d63d072c4b16ab236e4976b26355df48989aefb351c041
Manifest395a5cffdb68c08e954aa79fd75d8ad6d08cfd6bf01217e1810f89ceed2c55b0

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
SignaturecHNwogC99S3ehE71yXHh0+l7mCn1mqHlgWyiLjidhajKp3tHvUsglX02Un7mmkU4rDboAm6D3a1iP0CWI4VdBA==
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

2026-09-17T10:01:03.738513ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081931
observed 251faf57e2c5cb37e4d63d072c4b16ab...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:03.719564ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081931/manifest.json
observed 395a5cffdb68c08e954aa79fd75d8ad6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:03.702551ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081931/publication.md
observed f58abe40dcfd18f7e43d27baca4c83d6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:03.685512ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081931/publication.txt
observed 0604dba192f859b5e63f796d6ba1189e...
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.