OpenTechnical

OT-2026-000029031

Publication integrity record

Foam pad vacuum gripper, four zone face, per zone isolation, 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-2026-000029031) never changes.

Identity and time

Publication numberOT-2026-000029031 · never reused
Internal UUID01a0ae73-2a9f-76ed-b051-027189d9a0bd · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:38.288761Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000029031
StatusPUBLIC

Content hashes

Canonical text5819e511aaaec3f239b53cdc5711a33f7125927d186beecd0f01fbb5d85445fd
Markdown0b09c404771000ebdb5efd833732b8b49549e83048c9260a7d939b31a286727d
PDF
Publication page695c9a342f1e8eb5d1059342636969d368650d6b3ff971ae8b3108ca34df2fcd
Manifestce6af398511a46bad2866f6488fa18801b1c417249ffd72ad4683a1b7b346a7c

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
SignaturevLKkkRCpzzTqKHeuKZUfVbGZJF8g/2WA4fea0+AxaOs1Pozq4kOWxvkQ9A29Azl3/A3Z6cij6NQS/WJgM4WNAA==
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

2026-09-17T08:20:38.239551ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029031
observed 695c9a342f1e8eb5d1059342636969d3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:20:38.222148ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029031/manifest.json
observed ce6af398511a46bad2866f6488fa1880...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:20:38.204611ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029031/publication.md
observed 0b09c404771000ebdb5efd833732b8b4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:20:38.186225ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029031/publication.txt
observed 5819e511aaaec3f239b53cdc5711a33f...
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.