OpenTechnical

OT-2026-000091902

Publication integrity record

Two cup vacuum gripper, two zone face, six outlet manifold, pump fed, pressure sensor per zone, sustained 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-2026-000091902) never changes.

Identity and time

Publication numberOT-2026-000091902 · never reused
Internal UUID01a0ae9d-43ba-7511-aff6-f7cb282cef72 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:37.256105Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091902
StatusPUBLIC

Content hashes

Canonical textc1b4eda1173cc01f8f7451f8bdf4b050b379b8db3c46234348ca7d91db60464e
Markdownfc1ccab632f18550e5277a29b41d28063fb8b293b83860ab3f9a846367fafb74
PDF
Publication page29160ed53dd4f05e161682f13802f0359600adec431047e444200e88d9d04324
Manifest9b39d8d0de4cedc9c20ae7403046d66047600d64b9cee9cf28ebbc1231a6398c

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/PqZo0demy2qEV6u2COZK7AmYl83W/p80RMKJaCpeaicd2+86LzHSEZVR+cyGzM1IHWla95U9nWR+eUIvR4vBQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T09:42:50.293785ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091902
observed 29160ed53dd4f05e161682f13802f035...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:50.277444ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091902/manifest.json
observed 9b39d8d0de4cedc9c20ae7403046d660...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:50.261229ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091902/publication.md
observed fc1ccab632f18550e5277a29b41d2806...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:50.245206ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091902/publication.txt
observed c1b4eda1173cc01f8f7451f8bdf4b050...
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.