OpenTechnical

OT-2026-000030912

Publication integrity record

Two bellows cup vacuum gripper, two outlet manifold, common isolation valve, pump fed, sustained 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-2026-000030912) never changes.

Identity and time

Publication numberOT-2026-000030912 · never reused
Internal UUID01a0ae74-3fb6-7cd4-9aee-7a9c2fe0e2c1 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:20:49.275361Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000030912
StatusPUBLIC

Content hashes

Canonical text7108bb1e22e33caba9bef09828d2fbdda8cd5c25a794ee11fbb64492ead31ff1
Markdowne65545853804c3f4254ddceaa02a0578a967d8f1210988258c2e74e73aacc1d4
PDF
Publication pagec7c28a695601302947f481e0637d225790b5e33edfb3ed2c61a34093bdba9891
Manifest28dc7d96a233fa6da732c251e2d43d8bd1dfbdf8aba2fa03c6f4492b7901959b

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
SignatureHFhhKytCWgDAxP3KbeMnOpwJ2ePvQzsaG8rNHC7aP5SgSXPB4oqvCIoyQ8D/+E5UY+BXLqLwmLcr6YiLCLmUAA==
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

2026-09-17T11:36:54.196234ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030912
observed c7c28a695601302947f481e0637d2257...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:54.177765ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030912/manifest.json
observed 28dc7d96a233fa6da732c251e2d43d8b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:54.158835ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030912/publication.md
observed e65545853804c3f4254ddceaa02a0578...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:54.138342ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030912/publication.txt
observed 7108bb1e22e33caba9bef09828d2fbdd...
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.