OpenTechnical

OT-2026-000081028

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, common isolation valve, pump fed, manifold pressure sensor, 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-2026-000081028) never changes.

Identity and time

Publication numberOT-2026-000081028 · never reused
Internal UUID01a0ae96-b976-7bcc-a9a4-45643b881729 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:28.739380Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081028
StatusPUBLIC

Content hashes

Canonical text24bcfb74315dba1dfc682bf2bee244294e970a32ace4f49b01ede1d9bff19308
Markdownc0c3603c38312af4f3aaa56df1bae680b7a951af1e6c83d70e441ba6e127b1d9
PDF
Publication paged7fb3a86c72678f7e8a57285f4710695616ac68528054c7597462a78eaf6d6ff
Manifest8cdf5ae87464cf06f0fbff081d27eca94791592e77e8a6e618e04d1506b98ea4

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
SignatureR6euL/wTWfa1o0CtSwPOX5gvj2JBe1O9pp8hdPEI2Bs/+01oXRV56igrLdC95hQuetDkWrNqi7pd/0XwB5PMDg==
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

2026-09-17T10:02:19.070134ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081028
observed d7fb3a86c72678f7e8a57285f4710695...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:19.053158ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081028/manifest.json
observed 8cdf5ae87464cf06f0fbff081d27eca9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:19.036625ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081028/publication.md
observed c0c3603c38312af4f3aaa56df1bae680...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:19.019048ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081028/publication.txt
observed 24bcfb74315dba1dfc682bf2bee24429...
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.