OpenTechnical

OT-2026-000103913

Publication integrity record

Four cup vacuum gripper, four zone face, per zone isolation, single stage ejector, 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-2026-000103913) never changes.

Identity and time

Publication numberOT-2026-000103913 · never reused
Internal UUID01a0aea5-15e7-79d6-a1fb-e3c88cccaf71 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:14:09.781581Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000103913
StatusPUBLIC

Content hashes

Canonical text1b8b201f5573bca9bd537c941bf3abe8e77a5523b65b7d9df3a3af0ea604b488
Markdown003df8aed163e6e7dcc86388532cd2fcca65771324d4529e293a70af602cfed4
PDF
Publication page7ad61f5d32968f1d1c8c7e8ae089ab83ac739d0bfaccfe25f29e69affb646542
Manifest3d196bbc676307e6d0d08f3334d0c6eb278a1e54a0681b0ffbbeb8c9c37aa112

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
SignatureGuXMezU37LF5IG22lFnoku/aYmTcdlRH6dQVUVnghI5tjwpNlRunIU80EZf6/9x0sl6LXqClrsJSpfed44YzBQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:27:04Z
batch OT-TS-2026-W38-023 · RFC 3161 token · inclusion proof
root 095d30148a2ef87d42d7818ebe7543f9...

Independent retrieval

2026-09-17T09:21:54.441025ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103913
observed 7ad61f5d32968f1d1c8c7e8ae089ab83...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:21:54.424047ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103913/manifest.json
observed 3d196bbc676307e6d0d08f3334d0c6eb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:21:54.406512ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103913/publication.md
observed 003df8aed163e6e7dcc86388532cd2fc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:21:54.388796ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103913/publication.txt
observed 1b8b201f5573bca9bd537c941bf3abe8...
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.