OpenTechnical

OT-2026-000049902

Publication integrity record

Three pad foam vacuum gripper, three outlet manifold, 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-2026-000049902) never changes.

Identity and time

Publication numberOT-2026-000049902 · never reused
Internal UUID01a0ae81-fd76-7a98-a081-bc5e60fb9a32 · 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-2026-000049902
StatusPUBLIC

Content hashes

Canonical text6ad37e148c9a0056683d06ebb1786bc50599327395ee8b654843729e8ab643b0
Markdown7653f709392e71a6905be7e79938cced3ff8ed93d38b412c863952a172c0ef9d
PDF
Publication page0cfa475686241c4a356d3bf8e04b9df7f8d11327a67c4a2d52f3176154f9e7de
Manifest50b3a7292ad1e8c5f54311a4a3b3dffff9d85fe237d133c968bbec4f57d7ad6f

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
SignatureasSa9nvXCoInY8rAIuJLh4dOTbkUscbs85b1ZAnz4Ap0QeUlPUMs7SE3dAOiJS+BKwaZdIzERUBUd/C2EdjsCQ==
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

2026-09-17T11:01:49.361465ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049902
observed 0cfa475686241c4a356d3bf8e04b9df7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:49.343885ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049902/manifest.json
observed 50b3a7292ad1e8c5f54311a4a3b3dfff...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:49.322537ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049902/publication.md
observed 7653f709392e71a6905be7e79938cced...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:49.304159ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049902/publication.txt
observed 6ad37e148c9a0056683d06ebb1786bc5...
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.