OpenTechnical

OT-2026-000020412

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, pump fed, supply line pressure sensor, pulsed blow-off before 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-2026-000020412) never changes.

Identity and time

Publication numberOT-2026-000020412 · never reused
Internal UUID01a0ae6f-437b-7918-913e-660588fd1776 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:22.507199Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000020412
StatusPUBLIC

Content hashes

Canonical text456c6574fcfe5f3fbcec54c526458bbd30b5aa2da5068b267411b0013effc3ff
Markdown65cf7e0ca746667cd97b634fd371fe1c55fdf0ae5bd54a2e937b74ed2d17caf9
PDF
Publication page5941e3741e99e36f780e5ae0d9b98252f03cccb60f5e3bb747c0938aba69fdcb
Manifest9df22dd0562a9bad20d4ab8875f2aececc1fda13dfed7a12f85dcc3c10a91a3a

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
Signature1Be5z0LePB+NSipYY5IelbKMuiMEfN3OSWy/CG6/0INlFbCHR5kO7BRNq+aSiP2SBabDbeG1WmKWjKIYr1GRDw==
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

2026-09-17T12:00:18.957899ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020412
observed 5941e3741e99e36f780e5ae0d9b98252...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:00:18.939138ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020412/manifest.json
observed 9df22dd0562a9bad20d4ab8875f2aece...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:00:18.920748ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020412/publication.md
observed 65cf7e0ca746667cd97b634fd371fe1c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:00:18.902812ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020412/publication.txt
observed 456c6574fcfe5f3fbcec54c526458bbd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:57:23.428222ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020412
observed 5941e3741e99e36f780e5ae0d9b98252...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:57:23.410792ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020412/manifest.json
observed 9df22dd0562a9bad20d4ab8875f2aece...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:57:23.394278ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020412/publication.md
observed 65cf7e0ca746667cd97b634fd371fe1c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:57:23.378406ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020412/publication.txt
observed 456c6574fcfe5f3fbcec54c526458bbd...
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.