OpenTechnical

OT-2026-000005380

Publication integrity record

Vacuum cup gripper, two zone face, common isolation valve, two stage ejector, contact triggered

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-2026-000005380) never changes.

Identity and time

Publication numberOT-2026-000005380 · never reused
Internal UUID01a0a937-350d-7500-906a-c266893fb5fa · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:56:02.705112Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000005380
StatusPUBLIC

Content hashes

Canonical textdc0fee809933805c21ee0927d10765bdc860e0f2e6e45b990924664270ba2952
Markdown2d6019397a1a637c589f68c4b93f2eb2e721d401f1210044a29cb806ee0aa4c3
PDF
Publication page1b6cd05fa1936a256a21457c12248c7bce39fb9b6e249b48a8cb0c3955744cf8
Manifestf384ce347464148c3b80cf3927a4c9c3b9cf259993ea113beb51437a4b78d209

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
Signature6fFJfu38uoVplHGi0gwRqDia5rFh4+faAz5TA+y7fIIlBQOC5GxVjil2HvQyaV0KhCjQtqMucdpab2JBDQ17AA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:07:02Z
batch OT-TS-2026-W38-011 · RFC 3161 token · inclusion proof
root 8f13af7374aef42943b7bbe6a279c57a...

Independent retrieval

2026-09-16T08:00:16.131475ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005380
observed 1b6cd05fa1936a256a21457c12248c7b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:00:16.060161ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005380/manifest.json
observed f384ce347464148c3b80cf3927a4c9c3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:00:16.043771ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005380/publication.md
observed 2d6019397a1a637c589f68c4b93f2eb2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:00:16.030680ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005380/publication.txt
observed dc0fee809933805c21ee0927d10765bd...
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.