OpenTechnical

OT-2026-000103777

Publication integrity record

Foam pad vacuum gripper, two zone face, per zone isolation, 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-2026-000103777) never changes.

Identity and time

Publication numberOT-2026-000103777 · never reused
Internal UUID01a0aea4-e463-71a7-beee-4bd985cedcd2 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:13:57.105586Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000103777
StatusPUBLIC

Content hashes

Canonical textefe93415c2d84494513560e0d875c432f94d1e87fb73da8d790fe7fae0e3f86f
Markdownb591b201e3427b215e879058b24b0614bdbad28939d39a4d85c25cd885ec375a
PDF
Publication page6888b15d2f150342df316f4a19b8c335173abce1f550ff922813c8aa26d48428
Manifest5aa62e87c180a46502a70528f755749f9858e4f08a7688560b0719d3f5417072

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
SignatureY5DRejBXOGlatChd8BFfZh3D9FpwRIoOhUl83sf7QiElF4JKhiSOlH3c1W37JoNZ5nvVXmWPh6PxeTn8UF+EDQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:27:04Z
batch OT-TS-2026-W38-023 · RFC 3161 token · inclusion proof
root 095d30148a2ef87d42d7818ebe7543f9...

Independent retrieval

2026-09-17T09:22:43.750462ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103777
observed 6888b15d2f150342df316f4a19b8c335...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:22:43.730436ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103777/manifest.json
observed 5aa62e87c180a46502a70528f755749f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:22:43.714764ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103777/publication.md
observed b591b201e3427b215e879058b24b0614...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:22:43.698183ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103777/publication.txt
observed efe93415c2d84494513560e0d875c432...
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.