OpenTechnical

OT-2026-000076853

Publication integrity record

Two bellows cup vacuum gripper, two zone face, common isolation valve, single stage ejector, pressure sensor per zone, pulsed 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-2026-000076853) never changes.

Identity and time

Publication numberOT-2026-000076853 · never reused
Internal UUID01a0ae94-b070-7c24-b37a-e8dffb3aedc3 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:15.236414Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000076853
StatusPUBLIC

Content hashes

Canonical textb0f3cede0f49bb3de2f5b1e9a3bae092171b1fa728b79900156b247f4c682aa8
Markdown3fe3f89d70ceec560c4c34c3c8997e00927ae9723f45c6b53eb67309da95d9d5
PDF
Publication page4cc8c9ef66243bf9f65f2e767e17159bef0958bf836b75156bee506ff29529c7
Manifest9f3100777ca91f9ffab985e35d44d211d31b2c33d239b47cf1e785810b901f84

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
SignatureFcIqtsCuxsztaovDGhSmITAiMmRIf2XMAnLasJKuS+PDW+I4rmGQ9SmO4tZgSFLAfJju7pdHnykaZ3B+CunnDg==
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

2026-09-17T10:09:44.546256ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076853
observed 4cc8c9ef66243bf9f65f2e767e17159b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:44.526798ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076853/manifest.json
observed 9f3100777ca91f9ffab985e35d44d211...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:44.508599ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076853/publication.md
observed 3fe3f89d70ceec560c4c34c3c8997e00...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:44.489898ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076853/publication.txt
observed b0f3cede0f49bb3de2f5b1e9a3bae092...
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.