OpenTechnical

OT-2026-000039920

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, plant vacuum fed, manifold pressure sensor, 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-2026-000039920) never changes.

Identity and time

Publication numberOT-2026-000039920 · never reused
Internal UUID01a0ae78-d8d6-7f98-b525-8e26381d75c0 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:25:50.683051Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000039920
StatusPUBLIC

Content hashes

Canonical textbfaa4b17032348a92c6e8e9d4a92d91a1bb8faf5405cb34c0c4acb54a451ccb3
Markdown505001722bee0b58bec9e3188ae899afb18383216d65e55f0b540060867cc412
PDF
Publication page453dcd1e5dcf0f2dbda64d272a72cfe5d17b8183763142c4ac019e14eac1794e
Manifest73f4155912465d99b140b3348a2d4f28baf1a7638613dcb2229f7811ae7b160d

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
SignatureQyECc1gKfj5f7cR6WLnIZAd5JbDaa/7T3v62UPGfnmGxUBU9P+TdKsFIyACvxHLy7LStSYylvA/BsYb7rBpTAA==
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

2026-09-17T11:20:13.038535ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000039920
observed 453dcd1e5dcf0f2dbda64d272a72cfe5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:20:13.020796ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000039920/manifest.json
observed 73f4155912465d99b140b3348a2d4f28...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:20:13.003575ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000039920/publication.md
observed 505001722bee0b58bec9e3188ae899af...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:20:12.985519ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000039920/publication.txt
observed bfaa4b17032348a92c6e8e9d4a92d91a...
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.