OpenTechnical

OT-2026-000042643

Publication integrity record

Two bellows cup vacuum gripper, two zone face, four outlet manifold, three stage ejector, manifold pressure sensor, 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-2026-000042643) never changes.

Identity and time

Publication numberOT-2026-000042643 · never reused
Internal UUID01a0ae7a-c0ce-74b1-84bf-f88b66c4ba55 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:27:55.489038Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000042643
StatusPUBLIC

Content hashes

Canonical text435a08155c3eeece85a74e13007423d532314605094f7654221a3483176d4f48
Markdown7f88c2f69cc410cdbd3992ab053966049944cb76e346c594f4c757606cc97d69
PDF
Publication pagef2de6d164011606a0b4f4d17b558bae617f8ea26ae1e61b68f3aa5033ac2972e
Manifest4dfc1711b793b11e22d6771994ad8df8b3907e349228974df2ab9be9c821fdac

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
SignaturemvOajicoaZZ7D3mZqzPy/0oblpDwKG4q62MIYdtUtaY59qQ/z1Fs2hB4IVRVqhYj+svgRIJxRKKcqyQ1M+ypCA==
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

2026-09-17T11:14:22.849571ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042643
observed f2de6d164011606a0b4f4d17b558bae6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:14:22.830457ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042643/manifest.json
observed 4dfc1711b793b11e22d6771994ad8df8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:14:22.813432ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042643/publication.md
observed 7f88c2f69cc410cdbd3992ab05396604...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:14:22.795567ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042643/publication.txt
observed 435a08155c3eeece85a74e13007423d5...
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.