OpenTechnical

OT-2026-000078520

Publication integrity record

Two bellows cup vacuum gripper, two outlet manifold, common isolation valve, pump fed, 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-2026-000078520) never changes.

Identity and time

Publication numberOT-2026-000078520 · never reused
Internal UUID01a0ae95-7c29-7b01-97e7-ecf7d758afbc · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:57:07.483031Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000078520
StatusPUBLIC

Content hashes

Canonical textc79419c51122db9a9d2c4586efee1293e703cd78e0709c502ded46b8f7323aea
Markdown95058fb772f6cd6d868aff1bd357061ddbffe3793c1a0ad59503839e0b03e06b
PDF
Publication page57e5916384a33561fb2458918dd3a599ddbe4e0035921f930b17528b3c527812
Manifeste8185d52ffa2e6be568e55624559011939756ad8bff972a4f39c9aa4d689b6e7

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
SignaturenPWuGLQL4zc9keLtZNUIN8n1w4x1OxR3yfSY068D9/jBkithVN+qHfPUv8BXvmq7bc5/tA2R9Ug4qhp1GGZYBQ==
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

2026-09-17T10:06:32.225642ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078520
observed 57e5916384a33561fb2458918dd3a599...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:32.207259ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078520/manifest.json
observed e8185d52ffa2e6be568e556245590119...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:32.186898ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078520/publication.md
observed 95058fb772f6cd6d868aff1bd357061d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:32.168700ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078520/publication.txt
observed c79419c51122db9a9d2c4586efee1293...
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.