OpenTechnical

OT-2026-000028590

Publication integrity record

Four pad foam vacuum gripper, four outlet manifold, three 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-2026-000028590) never changes.

Identity and time

Publication numberOT-2026-000028590 · never reused
Internal UUID01a0ae72-e2f9-7509-b89a-32207b5cea56 · 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-2026-000028590
StatusPUBLIC

Content hashes

Canonical text95e01bc718480b1834f253b43d42325bdb71cb9cc2f8ec783d0bfeeccf95e43d
Markdown1ebaaad39edacaf5ec152c96b937ee5361ab1e9d03d406baec8dc4f1b8f6a447
PDF
Publication page3fc92775b9226084887f5a378d8cda6936e3ace7968fa0ec110edeebb4d393ea
Manifestc3f916919660b18e67200139cb1918fd67c597a3159abebb5a8563e35258e7c0

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
SignaturemW/xIuW5kQsMNIWKM3hiN3oOXl+2UF3wQrq36y8tcgX+SI54u/7vP1FSgWVd+F4YBREDc0gm+YXNXhUJkHNPCA==
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

2026-09-17T11:41:26.590914ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028590
observed 3fc92775b9226084887f5a378d8cda69...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:41:26.570889ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028590/manifest.json
observed c3f916919660b18e67200139cb1918fd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:41:26.551255ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028590/publication.md
observed 1ebaaad39edacaf5ec152c96b937ee53...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:41:26.530354ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028590/publication.txt
observed 95e01bc718480b1834f253b43d42325b...
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.