OpenTechnical

OT-2026-000040728

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, plant vacuum fed, manifold pressure sensor, 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-2026-000040728) never changes.

Identity and time

Publication numberOT-2026-000040728 · never reused
Internal UUID01a0ae79-6d0f-7f92-8678-733b19019229 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:26:28.516236Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000040728
StatusPUBLIC

Content hashes

Canonical text547fe7e16071b118af9fc1961ebeb2a81cd68ee5ce66835ddfb6724966f6676a
Markdown027665297ee036b0c867826b0cc0fca335a265acdf5fb0b6112c87845b6a99d7
PDF
Publication page806a8b854ce610a0cc862b84084af7238b52b7b414c573875899fccaac58f195
Manifest20a6e737fec8868b297a27f8abd7b72f2f021ee673e065a87ef79cfefe8b6913

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
Signaturep494rsyuKzrYoK1KMR8/4cPm+ER5pn7dmmhxa+I7e8WjfO4hKN1ReD+AVDnAztdDxi7DlTktHNR3Mqc+9KCmCQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:17:59.922150ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000040728
observed 806a8b854ce610a0cc862b84084af723...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:17:59.905043ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000040728/manifest.json
observed 20a6e737fec8868b297a27f8abd7b72f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:17:59.886530ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000040728/publication.md
observed 027665297ee036b0c867826b0cc0fca3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:17:59.869529ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000040728/publication.txt
observed 547fe7e16071b118af9fc1961ebeb2a8...
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.