OpenTechnical

OT-2026-000050029

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, pump fed, manifold pressure sensor, sustained blow-off after 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-2026-000050029) never changes.

Identity and time

Publication numberOT-2026-000050029 · never reused
Internal UUID01a0ae81-fd78-7ab8-9133-ad5bfe016f5e · 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-2026-000050029
StatusPUBLIC

Content hashes

Canonical textd15523bc79c28e0e4bad8228c7b2d533bf5068394fa1393c254a4f898c58400c
Markdownba0fe2175d1375fb7467a19c244224e23ac2fd847b2984357820fe11f377b8f3
PDF
Publication pagef095cafa47ddfc73c6652d58c9c6519a399e30f2ce6fbf4a6f4a7b4be552c197
Manifestb706fb3080fd07c65d97e4ded3d77fa17ac473e7287ddffe2513075283bbb4d3

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
SignaturegIviaR1fFxv3MNB7rbUooKxk2A3hYvb6TEVTh3x2FRqZ/MKycWZQpmNb2vBy21XIh89acj2E2U14pFbOHNp0Cg==
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

2026-09-17T11:02:00.142564ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050029
observed f095cafa47ddfc73c6652d58c9c6519a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:00.124322ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050029/manifest.json
observed b706fb3080fd07c65d97e4ded3d77fa1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:00.106679ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050029/publication.md
observed ba0fe2175d1375fb7467a19c244224e2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:00.089383ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050029/publication.txt
observed d15523bc79c28e0e4bad8228c7b2d533...
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.