OpenTechnical

OT-2026-000033241

Publication integrity record

Single cup vacuum gripper, common isolation valve, pump fed, pulsed blow-off after 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-2026-000033241) never changes.

Identity and time

Publication numberOT-2026-000033241 · never reused
Internal UUID01a0ae75-4845-7ac4-913c-fcfad252c5e2 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:57.065765Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000033241
StatusPUBLIC

Content hashes

Canonical text9cc71ea0661db6905df69f3786201502e4c560480bb66d21c75690c6577192b5
Markdownb0c5efce91ab14b0b4b24808966ac3d0cfc8b6e5e1dbff0ee3afbf3f9659af36
PDF
Publication page386ba32b715121bb537d52d8f98c4f05d596af2abdf8f3c89dea17d56d8a0e4f
Manifest01fe5f6797d57bb359f219d15912d01fc32f597a818e3568221facee03d5968c

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
SignaturelNfjY1x8HIsHvYiX3+DYn/QMvXPV1d43rU1yH+qAscFeEEpU9Ty3bqtrpL4kuThyCU0UD7SgEbsmkxvOaF5XAQ==
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

2026-09-17T11:32:56.995111ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033241
observed 386ba32b715121bb537d52d8f98c4f05...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:32:56.977839ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033241/manifest.json
observed 01fe5f6797d57bb359f219d15912d01f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:32:56.959663ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033241/publication.md
observed b0c5efce91ab14b0b4b24808966ac3d0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:32:56.941347ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033241/publication.txt
observed 9cc71ea0661db6905df69f3786201502...
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.