OpenTechnical

OT-2026-000021383

Publication integrity record

Foam pad vacuum gripper, four zone face, per zone isolation, three stage ejector, 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-2026-000021383) never changes.

Identity and time

Publication numberOT-2026-000021383 · never reused
Internal UUID01a0ae6f-865d-7393-b1fc-886af51da3bd · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:39.631048Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000021383
StatusPUBLIC

Content hashes

Canonical textd9da132ccec1d0ecb1746215391d6fdf03f303031f3c0fef4afd3f869ebff9c8
Markdown485553c4e6cc516266dbffe156913bd2530504ea2480c473aac56df1486884ee
PDF
Publication paged061d928176967cea1f240ab4f1201e1bd1f41bb9a1bf544df2480241fedf3c1
Manifest7ae7a61cef8b1368dbb2e526cc91d04444787319aa1e4a2963353a2ffaa7d799

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
SignatureBqNIX4Op6oJRZyfM0732CPZp9bAb8brMvZ47PPavt8NzdOKybU6Yk2kepIZ+PYg5cszzw2y7znzyAgx0oRxEDA==
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

2026-09-17T11:55:15.697790ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021383
observed d061d928176967cea1f240ab4f1201e1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:15.672665ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021383/manifest.json
observed 7ae7a61cef8b1368dbb2e526cc91d044...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:15.646925ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021383/publication.md
observed 485553c4e6cc516266dbffe156913bd2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:15.620660ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021383/publication.txt
observed d9da132ccec1d0ecb1746215391d6fdf...
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.