OpenTechnical

OT-2026-000012930

Publication integrity record

Foam pad vacuum gripper, pump fed, 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-2026-000012930) never changes.

Identity and time

Publication numberOT-2026-000012930 · never reused
Internal UUID01a0ae6d-5564-7476-8caf-b1ea7fd297fb · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:16.019734Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000012930
StatusPUBLIC

Content hashes

Canonical text958a0758bc94db9ac71fdf39ac91d7747c0d9a9ba18c1bdf1592b88617c87ce5
Markdown136fcd70305b11b7b5c337e00d236bd8cd6b815481b72c4ecba6349fec7d10a2
PDF
Publication page1c176ce52a1e4b18029680d2240416b51a281ac50588384df31c273a577e97e4
Manifest73e6526c1bc31bf6f53ce598f8ffe88becf2a4cc5227195599c248b7e59f3181

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
SignaturecNGGX9IjDD6HVfJDsZLSrM1ammOVegUQyA7K43WxLsVH9MXAfGBXcSJueXgPXRPYzy2cn9A6Rswdy/MeDV1XBg==
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

2026-09-17T12:10:43.759926ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012930
observed 1c176ce52a1e4b18029680d2240416b5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:43.742177ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012930/manifest.json
observed 73e6526c1bc31bf6f53ce598f8ffe88b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:43.720347ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012930/publication.md
observed 136fcd70305b11b7b5c337e00d236bd8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:43.701807ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012930/publication.txt
observed 958a0758bc94db9ac71fdf39ac91d774...
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.