OpenTechnical

OT-2026-000006250

Publication integrity record

Vacuum cup gripper, two stage ejector, pressure verified, contact triggered on the face, silicone cups

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-2026-000006250) never changes.

Identity and time

Publication numberOT-2026-000006250 · never reused
Internal UUID01a0a954-6673-75de-a9ee-24a6cd1c3576 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:27:55.894081Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006250
StatusPUBLIC

Content hashes

Canonical text6b602fcb40cb355d7328f0665e66ce33dfe62b54e6e9c9201352ae3d0669d917
Markdown72f876479df9f77ae9cd2192a097c85ac9696a8506c3fd759fbb3f34ba14355b
PDF
Publication page12bcdf6da80bd7dbca2e569d7b939075f893a012b4d662901294e68dda02719d
Manifest683d607fa6565c7b40758adc48ae6dcc765c0c5865c66ddb117df2601fe192c3

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
Signature2LX06nX4yCAzPhiazzJn08Y0NUFtyQBAlFgM4yvpWVoHUfj/Ys4o2Gsbj3x9xd8Ny3hZBr5G2jtZ+TjEHzl2Bw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:47:03Z
batch OT-TS-2026-W38-013 · RFC 3161 token · inclusion proof
root e368e9c5ab06dc5cb1b0682dd54c11f5...

Independent retrieval

2026-09-16T08:30:09.972905ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006250
observed 12bcdf6da80bd7dbca2e569d7b939075...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:30:09.955953ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006250/manifest.json
observed 683d607fa6565c7b40758adc48ae6dcc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:30:09.940497ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006250/publication.md
observed 72f876479df9f77ae9cd2192a097c85a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:30:09.927583ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006250/publication.txt
observed 6b602fcb40cb355d7328f0665e66ce33...
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.