OpenTechnical

OT-2026-000077746

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, common isolation valve, three stage ejector, vented 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-2026-000077746) never changes.

Identity and time

Publication numberOT-2026-000077746 · never reused
Internal UUID01a0ae95-2ecf-7508-9da2-5712d2db2af2 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:47.703064Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000077746
StatusPUBLIC

Content hashes

Canonical text7ee9af8add3042d2e2a038f69b5962ef801ae889260897263b06640984efc18a
Markdown36b26cf496db728ab854eb1db32d0e5eed0ed62aa68481232c111b0e40a6c488
PDF
Publication page854e9ed1ffdf3f3b2e1135e31c0c68ba17f4625ab28508424cff36d02b7206d2
Manifest55ca534131f11d256c3e6ea01face97d020cc21161bcebf415a46672cc79e4c0

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
SignatureOGTRmd8Vw590V3fRb45Tw+iOHs76U3ZaqXskB4kQwJc0h2PD9pjpyRVSK+0q4I2b3k29uiiE2lJWDA5y+D1KBg==
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

2026-09-17T10:06:56.592470ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077746
observed 854e9ed1ffdf3f3b2e1135e31c0c68ba...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:56.572864ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077746/manifest.json
observed 55ca534131f11d256c3e6ea01face97d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:56.527415ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077746/publication.md
observed 36b26cf496db728ab854eb1db32d0e5e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:56.484575ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077746/publication.txt
observed 7ee9af8add3042d2e2a038f69b5962ef...
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.