OpenTechnical

OT-2026-000071804

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, pump fed, vented 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-2026-000071804) never changes.

Identity and time

Publication numberOT-2026-000071804 · never reused
Internal UUID01a0ae92-1e92-7eaa-84ee-b11046d16f9d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:26.841552Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000071804
StatusPUBLIC

Content hashes

Canonical text42aa325a48ab814ecdd70e752caaabb0c753ab81b2c91f8bdf0e6f9a57ff90ad
Markdown2bccb727698136826275b2034650b651a7c1bf0e056c6dc313c042bbffb1fbe1
PDF
Publication pageadd1052aee0da5de5b41d8a4083a289e9628cf7727aded97aba28151913d445a
Manifest3beb4e0f9b9a8e98047f3667418004b77bd5fee92097916e597195e1ee30026d

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
Signature1c0xQcjb2HLFINMfjWAM7eW3oV9HxbUb/99Zy6hVUlYtNW1+8dNVdyOasSkWUikNp1ShFsylSz5n633zsemTBw==
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

2026-09-17T10:23:58.509124ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071804
observed add1052aee0da5de5b41d8a4083a289e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:58.492434ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071804/manifest.json
observed 3beb4e0f9b9a8e98047f3667418004b7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:58.475588ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071804/publication.md
observed 2bccb727698136826275b2034650b651...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:58.457520ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071804/publication.txt
observed 42aa325a48ab814ecdd70e752caaabb0...
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.