OpenTechnical

OT-2026-000081385

Publication integrity record

Two bellows cup vacuum gripper, two zone face, three outlet manifold, single stage ejector, 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-2026-000081385) never changes.

Identity and time

Publication numberOT-2026-000081385 · never reused
Internal UUID01a0ae96-f375-72e5-be19-87f2d7d1fa5f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:43.461344Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081385
StatusPUBLIC

Content hashes

Canonical text500ff559a197fed31ef08e25823ed9212ebac7a3ece768c6d3dbb0c7473ffb3a
Markdownb894038ac175f67a6ba9f63142bbc2f456d50a150f0d8c6c0cf7224384737e3c
PDF
Publication page60d3884eca61e1df1e16cc24ef28a29915f9ed9747c1ac4acc763b48d906f7ba
Manifestd8ef385935999d7de71a21a5c5b2f884c48ca9d6158d1e7cdaa70dd03d95f218

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
SignaturehxDRV1IvqgNx70vRzf+PfDgfAup46pY6LDPv95DhFtg1qptzYrpLRPkgJo3czx1FRAsQFsBI3Ei1LmX3JCLFBQ==
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

2026-09-17T10:01:31.545021ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081385
observed 60d3884eca61e1df1e16cc24ef28a299...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:31.520755ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081385/manifest.json
observed d8ef385935999d7de71a21a5c5b2f884...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:31.503810ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081385/publication.md
observed b894038ac175f67a6ba9f63142bbc2f4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:31.488308ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081385/publication.txt
observed 500ff559a197fed31ef08e25823ed921...
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.