OpenTechnical

OT-2026-000049807

Publication integrity record

Three bellows cup vacuum gripper, three zone face, three outlet manifold, plant vacuum fed, pressure sensor per zone, pulsed blow-off before 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-2026-000049807) never changes.

Identity and time

Publication numberOT-2026-000049807 · never reused
Internal UUID01a0ae81-8ff0-7424-af32-c9aa668550ad · 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-2026-000049807
StatusPUBLIC

Content hashes

Canonical text31ef0852cabc3c8c2272e433623a2d617511d4ea5333497cab74ac7745f73a42
Markdown280abed65255eca1c7482f65deec17a93d348cdebbe3e0c5bfa6790119f9937d
PDF
Publication pagefd2e5897cef774bb829b8e87f0fd39b8cc41a6745f98cf955e1f1c9ce3baebfd
Manifest7760ae8708399a2340cf0b2cf2f07497b1f4d121c050f0bc381ac3a01e2d77b4

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
SignaturefUHT5gO0UIUYUxM88NViX4sjQmwpqjmeDGkFO4KxGrzjBKPAYiktcPrbP1g1dix4yI/BTBQp3tFV6tF22ANRCQ==
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

2026-09-17T11:02:56.042965ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049807
observed fd2e5897cef774bb829b8e87f0fd39b8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:56.023749ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049807/manifest.json
observed 7760ae8708399a2340cf0b2cf2f07497...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:56.004332ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049807/publication.md
observed 280abed65255eca1c7482f65deec17a9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:55.984508ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049807/publication.txt
observed 31ef0852cabc3c8c2272e433623a2d61...
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.