OpenTechnical

OT-2026-000041200

Publication integrity record

Single bellows cup vacuum gripper, pump fed, pulsed 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-2026-000041200) never changes.

Identity and time

Publication numberOT-2026-000041200 · never reused
Internal UUID01a0ae79-b143-7e71-843b-6c1240a9aaf4 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:26:45.980839Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000041200
StatusPUBLIC

Content hashes

Canonical textb88437ae2752d8477620c0766829561b5e0a5816e62a7e079e56232996c2f14c
Markdowne12c49de45d415da3ef1da1df2f390200e5746023fa6c284ed00a16455793c9f
PDF
Publication page82def5708faa5a87a9c69588f14a01bf1565d665251d6ab732ff7663ed27fba3
Manifest59cec73c35e2edc60ab977c5a0ac5c37b6336fe83a468cb8d2025cdff68e3757

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
SignatureJpwZd8sKwRG+LymW9NOsWhF7Jl67k8xqj8neNO4DEgOrVIBq3cemgP3Ib4MfxZ/+aH7SfdqKgwYMbZ6j4CPiDA==
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

2026-09-17T11:17:09.383943ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041200
observed 82def5708faa5a87a9c69588f14a01bf...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:17:09.365117ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041200/manifest.json
observed 59cec73c35e2edc60ab977c5a0ac5c37...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:17:09.346829ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041200/publication.md
observed e12c49de45d415da3ef1da1df2f39020...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:17:09.326066ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041200/publication.txt
observed b88437ae2752d8477620c0766829561b...
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.