OpenTechnical

OT-2026-000081880

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, two stage ejector, supply line pressure sensor, vented after set-down

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-2026-000081880) never changes.

Identity and time

Publication numberOT-2026-000081880 · never reused
Internal UUID01a0ae97-0f76-7c6c-999e-c000de7f4eac · 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-2026-000081880
StatusPUBLIC

Content hashes

Canonical textefb33599a28e75dfe96f1bbd04bcf889e623ca6e432646f4012654d5715d60a4
Markdownc07b4247168d1e09ad1e7ea6a24a97843dec8a371fd351a5ab0b8d18e11e8e9b
PDF
Publication pageed50b495bd9d0536ee15decd03a380dc5cdddc1641848950932b09ebdc35a1ef
Manifest54ecaf020e095c4f6e2260572224a175b56218593339134715e987f43e75d4e1

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
SignaturePIrtxvdA6zZRnFk7tQ+d+JDZxVNguKlBaFLAhNTcmDDM2FVzQogb1xP0v/IWfYsg9H4eBk6QYRD+nhex4GjbDw==
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

2026-09-17T10:01:00.034552ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081880
observed ed50b495bd9d0536ee15decd03a380dc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:00.015867ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081880/manifest.json
observed 54ecaf020e095c4f6e2260572224a175...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:00:59.998772ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081880/publication.md
observed c07b4247168d1e09ad1e7ea6a24a9784...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:00:59.982688ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081880/publication.txt
observed efb33599a28e75dfe96f1bbd04bcf889...
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.