OpenTechnical

OT-2026-000044891

Publication integrity record

Four bellows cup vacuum gripper, four zone face, six outlet manifold, pump fed, 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-2026-000044891) never changes.

Identity and time

Publication numberOT-2026-000044891 · never reused
Internal UUID01a0ae7c-911c-7708-85f4-ebae386ccceb · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:29:54.474009Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000044891
StatusPUBLIC

Content hashes

Canonical text46601c9137f95065249415d9436e5540192307dc59aaf9d148d56ab1c8c0fda8
Markdownd33a3b5e2c2fe38a0fb616f89f2b3bd8c9693692299ac4d588fa101ae47b3c14
PDF
Publication paged81d0225a24be7ef5a1d2ed715ece42abd3ca515d40949952f3f8230b4c75593
Manifest3d560a45611463366dd8898a21dda323f2ef68ae5db898305ac3d7d1b76c6014

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
SignatureJPgEzXWTmuKevpBnDbIzo5khtEZaQgRNOslmxERtfH1RhSFlcMxF3uZcS51WK6JpGpxKwJMVgHTN1WUcXVFDCg==
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

2026-09-17T11:11:33.127116ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000044891
observed d81d0225a24be7ef5a1d2ed715ece42a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:11:33.106904ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000044891/manifest.json
observed 3d560a45611463366dd8898a21dda323...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:11:33.088516ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000044891/publication.md
observed d33a3b5e2c2fe38a0fb616f89f2b3bd8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:11:33.069986ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000044891/publication.txt
observed 46601c9137f95065249415d9436e5540...
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.