OpenTechnical

OT-2026-000076833

Publication integrity record

Four cup vacuum gripper, four zone face, per zone isolation, pump fed, pressure sensor per zone, pulsed blow-off before set-down

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-2026-000076833) never changes.

Identity and time

Publication numberOT-2026-000076833 · never reused
Internal UUID01a0ae94-b070-7ce2-8eda-6cb61894a7db · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:15.236414Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000076833
StatusPUBLIC

Content hashes

Canonical text20e653c611f61dd081b5cb38acd51af917b3ee49c8c3ed12f990670bf48f236a
Markdown13fc9605193e9c94234099805c7a1038605c4b2af61df2fc51be163568e0e1dc
PDF
Publication page6f8cf7d61be355bca67c6f18327067ea9d5255ccc198d298ec39ef3e8945a8c2
Manifest35f89e0ec79c0b133b7daf6ed0c67b3d1e19b25a51038a619ad43e09ac3bec78

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
SignatureWksUfQLRqW9OgUU4IFuP/qcUZFxjZDJbaS3sVdtqCE1H1XQbbJDKznxc8v2tHLG1xB8jsiLYbGauvsDLPTEyBw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:09:42.905840ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076833
observed 6f8cf7d61be355bca67c6f18327067ea...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:42.887994ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076833/manifest.json
observed 35f89e0ec79c0b133b7daf6ed0c67b3d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:42.868991ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076833/publication.md
observed 13fc9605193e9c94234099805c7a1038...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:42.791605ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076833/publication.txt
observed 20e653c611f61dd081b5cb38acd51af9...
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.