OpenTechnical

OT-2026-000028514

Publication integrity record

Three pad foam vacuum gripper, three outlet manifold, two stage ejector, manifold pressure sensor, 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-2026-000028514) never changes.

Identity and time

Publication numberOT-2026-000028514 · never reused
Internal UUID01a0ae72-e2f8-726e-a7d3-8052e3108629 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:19.949572Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028514
StatusPUBLIC

Content hashes

Canonical text51d7b3ea1d4d3e955d07c99bf3b70dcc312f5b6a4c8c3a1d50bfdc8a1b71ed36
Markdownc500d1cf00ec2947bf61682adc0a78306d499d7bf235ce98a220d3f8be3336af
PDF
Publication page55f39c8ebbd466b69c7cc187fa54558e305fb49135e14ec466644c4b07d2706c
Manifestd41647c49783532ee8c60782061506d8f6bdeb896e8bf51f794d4213f8e63abc

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
Signaturey6YougwySfLLkBUyxvzTIvA484/b85LdxMy+7I8lkU3filwuLPLPllFJVoZQtx60M0SGCa6HZ1s9M9ODvk0MCw==
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

2026-09-17T11:40:46.863759ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028514
observed 55f39c8ebbd466b69c7cc187fa54558e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:46.840734ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028514/manifest.json
observed d41647c49783532ee8c60782061506d8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:46.826101ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028514/publication.md
observed c500d1cf00ec2947bf61682adc0a7830...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:46.806712ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028514/publication.txt
observed 51d7b3ea1d4d3e955d07c99bf3b70dcc...
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.