OpenTechnical

OT-2026-000089603

Publication integrity record

Three cup vacuum gripper, three zone face, three outlet manifold, pump fed, manifold pressure sensor, sustained blow-off before set-down

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-2026-000089603) never changes.

Identity and time

Publication numberOT-2026-000089603 · never reused
Internal UUID01a0ae9c-1a21-704f-bf4c-d68a931bc823 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:21.039513Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000089603
StatusPUBLIC

Content hashes

Canonical textb4ff288a4a10b7d850a9db42f97be2be740142b4090f110a5cbdd0c32ccdd910
Markdown5c8ba88743737a95d136cfb7cd15ec4f1a8d7ac8331020402e1773309ec233c2
PDF
Publication page946166bc535374b2123fcd50bb8b2149e33f64fc2eb1e658021bfd77b570bc3e
Manifest4a0dcb560f9846b00f66a5b86b056fa31b28a55790b4786d4a22e924fc90f0d2

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
SignaturehSILRexo9zI1fFtLtZ3zTbcDVAUvQqql9nZd77ya2xfQhyr5SpBTM7p+yM3hzT/W85CUXGZkzP0/rn0p4TG9AQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T09:46:34.949617ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089603
observed 946166bc535374b2123fcd50bb8b2149...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:34.933232ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089603/manifest.json
observed 4a0dcb560f9846b00f66a5b86b056fa3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:34.914616ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089603/publication.md
observed 5c8ba88743737a95d136cfb7cd15ec4f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:34.896891ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089603/publication.txt
observed b4ff288a4a10b7d850a9db42f97be2be...
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.