OpenTechnical

OT-2026-000061238

Publication integrity record

Foam pad vacuum gripper, two stage ejector, vented 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-2026-000061238) never changes.

Identity and time

Publication numberOT-2026-000061238 · never reused
Internal UUID01a0ae8b-1382-7972-b1e5-43cb29088789 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:45:45.252443Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000061238
StatusPUBLIC

Content hashes

Canonical text2cd36cd2b91cf83b10e7743d2d7f81323ec531932e8355945afba68dcbf64d9f
Markdown045a51828c2695c4fbabb9a16e4e021ed2cd0adaf4433060f6f0660af863b225
PDF
Publication page70230aa5430d97be4761368b48c2872bbe70e3763cace000a79f321ccdaf890f
Manifest1c42e418da884649b7b4aefc576f740ea7bb457bbc79ac8b80692bd44ef96d3b

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
SignaturePlngRTSq5fMMDHQ2pftjItO2Cy2HixY8HGfk0J0nf8g8osq/lpogL+obXhQY3RsnfF1IuMtjzgp3QYdVULDeAw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...

Independent retrieval

2026-09-17T10:42:38.961958ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061238
observed 70230aa5430d97be4761368b48c2872b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:42:38.944038ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061238/manifest.json
observed 1c42e418da884649b7b4aefc576f740e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:42:38.926373ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061238/publication.md
observed 045a51828c2695c4fbabb9a16e4e021e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:42:38.909206ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061238/publication.txt
observed 2cd36cd2b91cf83b10e7743d2d7f8132...
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.