OpenTechnical

OT-2026-000006874

Publication integrity record

Porous face vacuum gripper, two stage ejector, pressure verified, pulsed blow off after set down

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-2026-000006874) never changes.

Identity and time

Publication numberOT-2026-000006874 · never reused
Internal UUID01a0a96a-6a85-79c1-804d-7faa50ae866c · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:51:58.727628Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006874
StatusPUBLIC

Content hashes

Canonical textc2e5b166243538c6b75a0957d1ba50c51ee458f75df223a151539d2ab166dd74
Markdownfa3918f03e066c9039407a2f396f45f13e03f1bf6c82fe8415a3bf7dc930bf3d
PDF
Publication pagefb41012c5fdf0a2197dfdd71c96aeeb21c254823d02cf37195e1afe26211b294
Manifest6341582bd00a20039784964f78ccdcd907273ce416a0f6374e864162bcb20350

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
Signature/13kS0K/Gk2+hzxjxj0H1+DqiI59o3VCZIpdduS4liyON3cZHawZ84BljQ3vUp6B0aOINyZdkpwD8CW3APrkCQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T09:07:03Z
batch OT-TS-2026-W38-014 · RFC 3161 token · inclusion proof
root 2354c19da800f8df297acf3cddd64d4d...

Independent retrieval

2026-09-16T09:00:26.742504ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006874
observed fb41012c5fdf0a2197dfdd71c96aeeb2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:00:26.729571ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006874/manifest.json
observed 6341582bd00a20039784964f78ccdcd9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:00:26.716586ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006874/publication.md
observed fa3918f03e066c9039407a2f396f45f1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:00:26.704731ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006874/publication.txt
observed c2e5b166243538c6b75a0957d1ba50c5...
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.