OpenTechnical

OT-2026-000042793

Publication integrity record

Single cup vacuum gripper, plant vacuum fed, sustained blow-off after 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-2026-000042793) never changes.

Identity and time

Publication numberOT-2026-000042793 · never reused
Internal UUID01a0ae7a-c0d0-735b-aebd-3b8bc1d96b27 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:27:55.489038Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000042793
StatusPUBLIC

Content hashes

Canonical text4a73f28f92f0788a49886564d0fe52f27341e8ca4fb0798e25f28addb1f5fd27
Markdown19edae3a084ad5dd24d26951cc26e699bba11207065af161378e3645ce0e313f
PDF
Publication page3bae965a2f89a27c0d0774442b42f9943234af6dea373ca204f39a759721a429
Manifestc50f7a55a51d030dba9cdcfdab2911d9c9467dc614050bd52e5677e04dd705bc

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
SignatureoNdY6mHGxuJfBmhfbxxcRJC0+kOOPn8710rlxcESbW1+rdoLZAQWEUUvny/r3D8zInjvLNqFFT4jYJakivFuAw==
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

2026-09-17T11:15:15.609418ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042793
observed 3bae965a2f89a27c0d0774442b42f994...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:15.587771ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042793/manifest.json
observed c50f7a55a51d030dba9cdcfdab2911d9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:15.567681ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042793/publication.md
observed 19edae3a084ad5dd24d26951cc26e699...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:15.547815ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042793/publication.txt
observed 4a73f28f92f0788a49886564d0fe52f2...
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.