OpenTechnical

OT-2026-000042883

Publication integrity record

Three bellows cup vacuum gripper, three zone face, four outlet manifold, single stage ejector, manifold pressure sensor, 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-2026-000042883) never changes.

Identity and time

Publication numberOT-2026-000042883 · never reused
Internal UUID01a0ae7a-c0d1-7778-a1b5-8a181b85728a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:27:55.489038Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000042883
StatusPUBLIC

Content hashes

Canonical textc8bfb1eda9dc4d579d994e942f5c1958d2e5d5bc12a54ca8645c2d7c26664e32
Markdowne54827c435557d9e484d24179415b46cf57e34d541a2f74ed048dad25cb61605
PDF
Publication paged3249b10eb8ac54639b96202fb1cba7bec4aa30c8dc34bb40e7b39c26b295ec4
Manifest1b58e5e1ba1f74052a018600bacfd0d0879f3e0cc447368855c5612c2a8c8d0f

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
SignatureaA6szS1FihTcD4NuRvky5tUQ1qOG8OB7q8oYD0zI6dHu8l0QcZiAf/jvovKcP/yx5rh3y6vi7JLfyTiCvfO+BQ==
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

2026-09-17T11:15:23.018932ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042883
observed d3249b10eb8ac54639b96202fb1cba7b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:22.997916ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042883/manifest.json
observed 1b58e5e1ba1f74052a018600bacfd0d0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:22.979143ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042883/publication.md
observed e54827c435557d9e484d24179415b46c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:22.959074ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042883/publication.txt
observed c8bfb1eda9dc4d579d994e942f5c1958...
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.