OpenTechnical

OT-2026-000049563

Publication integrity record

Three bellows cup vacuum gripper, three zone face, three outlet manifold, single stage ejector, pressure sensor per zone, 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-2026-000049563) never changes.

Identity and time

Publication numberOT-2026-000049563 · never reused
Internal UUID01a0ae81-8f7d-74a3-96ad-b27ed7167996 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:35:21.728203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000049563
StatusPUBLIC

Content hashes

Canonical text7106080c1154da5b7aa2182279ba298e299dfc166a881f2d6db4331373d1add5
Markdowncf79b27e15f7dd51b7e56655f949009cda9aaa5dbfa5cb11ed2bdac6d8d3d8a7
PDF
Publication page44c4ffa12d64d15b22a4610b07a0352f7c31211f09efe6230903bb90172c5ca3
Manifeste5f84d5555fcab7ff137b3574525181131951678c1614c72884492db026fb181

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
SignatureXo5Fb9DdBXUlbonTPoQFv7mEV8OuXyLeLVTU2x4xqOtwi2zKc+tbpuqQmsOFikgJnwuL7w0dXYc2rVkthljRBw==
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

2026-09-17T11:02:26.184694ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049563
observed 44c4ffa12d64d15b22a4610b07a0352f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:26.166206ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049563/manifest.json
observed e5f84d5555fcab7ff137b35745251811...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:26.149678ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049563/publication.md
observed cf79b27e15f7dd51b7e56655f949009c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:26.131630ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049563/publication.txt
observed 7106080c1154da5b7aa2182279ba298e...
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.