OpenTechnical

OT-2026-000049891

Publication integrity record

Three bellows cup vacuum gripper, three zone face, three outlet manifold, pump 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-2026-000049891) never changes.

Identity and time

Publication numberOT-2026-000049891 · never reused
Internal UUID01a0ae81-fd76-7d1d-a75c-39d4f427c134 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:35:49.774136Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000049891
StatusPUBLIC

Content hashes

Canonical textc95181c650ebdddabf5e90f111762288a766a38fb6741007dd72fcec5abb6421
Markdownd2413a4bf120c63b434cf4cdb917f97d849e66f9c920289dc7ea954a3f1b4e80
PDF
Publication pageae2ade72e9767693fb79b238af68fb7f6334467b89343f19736f38cfe04f4f51
Manifest6fccd28f3c3fd668318c15dfcae067977b1537082b5d8b6dc768ae8a88b0c9fa

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
SignatureXOyhx6f8poAHxFYZpb1hebHbwQYkXpkmuq83IpCa8U5esztpCbcMaizKi5/M4egb3/XjROM6Ge108p2LZ4m3Bg==
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

2026-09-17T11:01:48.499956ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049891
observed ae2ade72e9767693fb79b238af68fb7f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:48.482032ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049891/manifest.json
observed 6fccd28f3c3fd668318c15dfcae06797...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:48.462786ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049891/publication.md
observed d2413a4bf120c63b434cf4cdb917f97d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:48.443883ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049891/publication.txt
observed c95181c650ebdddabf5e90f111762288...
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.