OpenTechnical

OT-2026-000079717

Publication integrity record

Three cup vacuum gripper, three zone face, pump fed, 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-2026-000079717) never changes.

Identity and time

Publication numberOT-2026-000079717 · never reused
Internal UUID01a0ae96-4375-7434-854f-fa610c071244 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:57:58.480954Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000079717
StatusPUBLIC

Content hashes

Canonical textc41e45ed354aa7ca32e8d882db213c8e844851d53c0a0dc167182dff40852a9d
Markdownc2d1e19b752275336a6a6eb48a75a9e2d9985b6b89ddc6e4ac729292e59cceda
PDF
Publication page0e0f762f104b0df3ef422c70c535a6a8dbaf06ffa0a53fc77fcbef05a64bd338
Manifest6ba6636f5163c3105378bbc63ef01e04a0c740e089595289f88e7aacc4db87c9

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
SignatureVJxER+McOk7VAy+yXX5xOucOmyJY1k3LJ2ivYXQwqdl44Uz2CJb+SklQKujTMknEBWJ/Dfsxac0qwsP8gvgnBQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:03:34.662567ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079717
observed 0e0f762f104b0df3ef422c70c535a6a8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:03:34.643831ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079717/manifest.json
observed 6ba6636f5163c3105378bbc63ef01e04...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:03:34.625536ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079717/publication.md
observed c2d1e19b752275336a6a6eb48a75a9e2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:03:34.606235ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079717/publication.txt
observed c41e45ed354aa7ca32e8d882db213c8e...
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.