OpenTechnical

OT-2026-000013042

Publication integrity record

Foam pad vacuum gripper, common isolation valve, pump fed, 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-2026-000013042) never changes.

Identity and time

Publication numberOT-2026-000013042 · never reused
Internal UUID01a0ae6d-5564-716e-8bff-f369001edf2c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:16.019734Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000013042
StatusPUBLIC

Content hashes

Canonical text34d216d5715239440aa953282c1302296f6d75ccae60c3917e3f6a603860fa7d
Markdown2988cd313b2e4a64f2663515ac785497a4b0a01cda9e33b606928d9551eccfe3
PDF
Publication pagef0da720d7dfd1e5036fe1e9f0061d9a6ccb0a164c5b8ef7c4dac4ef93fda6e71
Manifestd29cf3437dad22ee2a97d719b95c90c58471266788ed27013cb887146d748781

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
Signature6bIOHDknfGmbe1Jx1nX1qoNcvKyu34FFh0bKFigc7+1onI5H+Q8IhE0UENS0WXxVKo5ixVS4JpBvX4+BwQ3tBg==
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

2026-09-17T12:10:52.446641ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013042
observed f0da720d7dfd1e5036fe1e9f0061d9a6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:52.428144ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013042/manifest.json
observed d29cf3437dad22ee2a97d719b95c90c5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:52.409271ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013042/publication.md
observed 2988cd313b2e4a64f2663515ac785497...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:52.389932ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013042/publication.txt
observed 34d216d5715239440aa953282c130229...
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.