OpenTechnical

OT-2026-000067984

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, pump fed, supply line pressure sensor, sustained blow-off 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-2026-000067984) never changes.

Identity and time

Publication numberOT-2026-000067984 · never reused
Internal UUID01a0ae8f-c4fd-736f-bc01-2278a274f17b · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:50:52.812402Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000067984
StatusPUBLIC

Content hashes

Canonical text399731448a3c4a7e9a7764c9a5a5d005317806e3e321662769ce25df8874c1f8
Markdown7b1fcf4cac7bab7f1a813b1db709f469fe27fbdb1da56c9fc54a95885d473266
PDF
Publication page3fe776cffe5e75b73846e49da04b6dfd4ccc04bfc285508f0c4d5944141f0002
Manifest0c123974fe63cb3e459039070f3b4fb90951b5b2e221a43907aaeb8a3d9c895a

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
SignaturenSXZrSA8Q+rDp7OicMrbqDBfJEGMWki4Q4roD6GgUi2SewbJJKfg5SGaHCihX7W3K8W7xiB+idpiHzNtFpd3AA==
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

2026-09-17T10:30:31.969329ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067984
observed 3fe776cffe5e75b73846e49da04b6dfd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:30:31.950724ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067984/manifest.json
observed 0c123974fe63cb3e459039070f3b4fb9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:30:31.931222ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067984/publication.md
observed 7b1fcf4cac7bab7f1a813b1db709f469...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:30:31.911759ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067984/publication.txt
observed 399731448a3c4a7e9a7764c9a5a5d005...
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.