OpenTechnical

OT-2026-000045171

Publication integrity record

Two cup vacuum gripper, two zone face, two stage ejector, pressure sensor per zone, 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-2026-000045171) never changes.

Identity and time

Publication numberOT-2026-000045171 · never reused
Internal UUID01a0ae7c-f769-79c0-9f67-16aaeb0e3848 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:30:20.545172Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000045171
StatusPUBLIC

Content hashes

Canonical textf52f8542265022643507deccbb0acc7949ea160290df31e36085417d29e3647d
Markdowne43e0d7a4e4cdead62a4d4d76f880d944bb1b02bc4267d9a2b7dfb03ae927bf0
PDF
Publication page7651f579774a0bdf55494ee28a71f18788909eeb25cd90f5f15099dcc1fdeb2b
Manifest6ed053a06f776f6ba224d9fc66fc222e53c1bbb03a8a6b5661d17ca97ed49dc9

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
Signaturehf1e27557uWRVHgfjlHMpv0l6ABtB0Bz4Su2oFAhOrabH/gJ4qHNkYYAPuxJcN7GqmqUmEhT610ClYGmWVJMBw==
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

2026-09-17T11:10:20.061999ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000045171
observed 7651f579774a0bdf55494ee28a71f187...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:10:20.044357ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000045171/manifest.json
observed 6ed053a06f776f6ba224d9fc66fc222e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:10:20.023095ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000045171/publication.md
observed e43e0d7a4e4cdead62a4d4d76f880d94...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:10:20.003771ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000045171/publication.txt
observed f52f8542265022643507deccbb0acc79...
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.