OpenTechnical

OT-2026-000056400

Publication integrity record

Two bellows cup vacuum gripper, two outlet manifold, plant vacuum fed, sustained blow-off 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-2026-000056400) never changes.

Identity and time

Publication numberOT-2026-000056400 · never reused
Internal UUID01a0ae87-4bd2-7391-8f7f-364c691bece2 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:41:37.517586Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000056400
StatusPUBLIC

Content hashes

Canonical text56b6aa69b2844f0a400f66ff333ad713b85619a46d19145cb78b1a9107463028
Markdown43c9590de82d8e30b2ee3c6e29e57a5dde9eea127685c257985cbae0bc7475f4
PDF
Publication page7a9a9e8d6a0e991ab1d9e9442dd60ccd7c41ab20c41b64a5308533a09e359651
Manifest8865646a9abdab0e15301f31185b27ba460ab5d34159ed0dfa645c02d5869b83

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
SignatureyffqKxgmxtUlzFcY8u/7wKCYPE59nl9yg/Xl0KEVlr4G+IQAetswlYc1X1p/mIkj+Wi/7QCDDrH+MgvdMPp7DA==
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...
timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T10:50:55.732703ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056400
observed 7a9a9e8d6a0e991ab1d9e9442dd60ccd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:50:55.717314ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056400/manifest.json
observed 8865646a9abdab0e15301f31185b27ba...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:50:55.699960ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056400/publication.md
observed 43c9590de82d8e30b2ee3c6e29e57a5d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:50:55.682377ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056400/publication.txt
observed 56b6aa69b2844f0a400f66ff333ad713...
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.