OpenTechnical

OT-2026-000008719

Publication integrity record

Three bellows cup vacuum gripper, three zone face, common isolation valve, 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-2026-000008719) never changes.

Identity and time

Publication numberOT-2026-000008719 · never reused
Internal UUID01a0ae6a-e46c-73d7-9506-d6cc0abacab7 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:10:36.030441Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000008719
StatusPUBLIC

Content hashes

Canonical text614ef6ee4e48cba2cb9ec0615ffe456306e291c5628270775c52377a758678cc
Markdown2cf81ea43cdb569f80933f9ffc2d0fc43242a9ccd60de99e7f577f09002e9f7d
PDF
Publication pagebda9a12ca3241a7e5de84d95d823f7945706b41b9a8122ac19150518e3da80c8
Manifest9d72e0e90f5186cefb2e02c2733d2c08733156cf5118656074fc78478db2cadc

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
SignatureogX9Df3TlRMhfyR9jXpcguU5SrQHt+bwqg5sZMAAVJHCnCrmaAxSFuqWgvaL81LmQgREdUUEiu8czl2ddWITCw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:27:08Z
batch OT-TS-2026-W38-017 · RFC 3161 token · inclusion proof
root 20fdfaa98ae3657e4211fd7783095876...

Independent retrieval

2026-09-17T12:18:47.939036ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000008719
observed bda9a12ca3241a7e5de84d95d823f794...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:18:47.917173ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000008719/manifest.json
observed 9d72e0e90f5186cefb2e02c2733d2c08...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:18:47.894234ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000008719/publication.md
observed 2cf81ea43cdb569f80933f9ffc2d0fc4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:18:47.874717ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000008719/publication.txt
observed 614ef6ee4e48cba2cb9ec0615ffe4563...
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.