OpenTechnical

OT-2026-000090233

Publication integrity record

Two bellows cup vacuum gripper, two zone face, single stage ejector, pressure sensor per zone, 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-2026-000090233) never changes.

Identity and time

Publication numberOT-2026-000090233 · never reused
Internal UUID01a0ae9c-428f-7012-8600-86b61860ba95 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:31.390046Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090233
StatusPUBLIC

Content hashes

Canonical text6a457389eacee0bc63bd7c9b1ce4f81ec8547d706b95f2c71e94607cce28405b
Markdown97fa091b9e39d74bccc84933b8e5ee6946f5f2de9f6a44a03e51c4adb142e6bb
PDF
Publication pageef3bb668b1968d7b451fd88571e832ed272e3cc9c7168dc6b1b718990273fa20
Manifestfb23dffdf02340a837ea92edd600950c3b8bfe67145d43c5425fcca05561e643

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
SignatureXuXpQ09kzcHwyE+wwGOXSsTO5JfQ8elsFwpNuW6nWXeQkJ1G1lLswTtDzZvmEDnB//xM/iAZjoXr2ztqQ3ITAQ==
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

2026-09-17T09:46:18.963280ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090233
observed ef3bb668b1968d7b451fd88571e832ed...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:18.943917ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090233/manifest.json
observed fb23dffdf02340a837ea92edd600950c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:18.927425ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090233/publication.md
observed 97fa091b9e39d74bccc84933b8e5ee69...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:18.910775ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090233/publication.txt
observed 6a457389eacee0bc63bd7c9b1ce4f81e...
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.