OpenTechnical

OT-2026-000085621

Publication integrity record

Two bellows cup vacuum gripper, two zone face, plant vacuum fed, sustained blow-off 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-2026-000085621) never changes.

Identity and time

Publication numberOT-2026-000085621 · never reused
Internal UUID01a0ae99-aaad-7e80-ae48-7bddd1bbc257 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:01:41.564662Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000085621
StatusPUBLIC

Content hashes

Canonical texte5a5ee11921ddbe4c0e432fc63b005395cbcdac894773ffe82fae03ec452f7b8
Markdowne0e64cb018d121e471da938f51b753100400b5ce658e98343db342accfc75315
PDF
Publication page883e22957fd43b0a671532fd612d3692cc474d16856ab4ff1854741608889641
Manifestb3954addac88aa566d5eb8fc2448ab095630ea59f5be0829b02ecc5e5e877c3a

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
SignaturedQymmTXxPbSdfaegxlVE9sGK6/f6sJ4e8GZGW2fjBIEyjzSPotnkgkRxy6JhPmgzLfgEg+PO12si30F3b22GBg==
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

2026-09-17T09:54:30.217791ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000085621
observed 883e22957fd43b0a671532fd612d3692...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:54:30.198829ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000085621/manifest.json
observed b3954addac88aa566d5eb8fc2448ab09...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:54:30.180212ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000085621/publication.md
observed e0e64cb018d121e471da938f51b75310...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:54:30.161609ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000085621/publication.txt
observed e5a5ee11921ddbe4c0e432fc63b00539...
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.