OpenTechnical

OT-2026-000048947

Publication integrity record

Two bellows cup vacuum gripper, two zone face, two outlet manifold, pump fed, pressure sensor per zone, pulsed 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-2026-000048947) never changes.

Identity and time

Publication numberOT-2026-000048947 · never reused
Internal UUID01a0ae81-134c-7fc6-9d33-61393554c06d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:34:49.967260Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000048947
StatusPUBLIC

Content hashes

Canonical text4d8b9b44fc0177ee68903271c8d9eb73a41b2d8413ed14feceb3779e848292de
Markdown8985105e37f0565a48e381d32cb972e6f1e2e173dcbd0360b91d94b534f2f86e
PDF
Publication page1f1a62fc7bea65e9a861780823fd43a91ad0981982ccfd65fef7b0fb8d28918b
Manifestf095cab13d3fc056460aa23c9c2aa5d430129b626f75ee0243808a732fdd413a

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
Signaturea9/0srco8IOyQZziA5NbnsYQ5zvbWDCLanhCvSMRyO+F0Tf8O9FOtgwdIQmL633uZqamKDq0GxmETCTGWJziCw==
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

2026-09-17T11:03:08.077514ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048947
observed 1f1a62fc7bea65e9a861780823fd43a9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:03:08.057478ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048947/manifest.json
observed f095cab13d3fc056460aa23c9c2aa5d4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:03:08.035958ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048947/publication.md
observed 8985105e37f0565a48e381d32cb972e6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:03:08.015870ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048947/publication.txt
observed 4d8b9b44fc0177ee68903271c8d9eb73...
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.