OpenTechnical

OT-2026-000077018

Publication integrity record

Single bellows cup vacuum gripper, single stage ejector, vented after set-down

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-2026-000077018) never changes.

Identity and time

Publication numberOT-2026-000077018 · never reused
Internal UUID01a0ae94-b071-76b7-91b7-9dd0afc1354a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:15.236414Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000077018
StatusPUBLIC

Content hashes

Canonical text7035851abec3104b3db16339fcf67027a7ba2773fad931ee8d561f6184431f88
Markdown3ef9d85cb7326638c28cd4c21510483a27dcde8cafc70514e7eca64f17ec1330
PDF
Publication page734508bd67633fad4dce9aebb6e29ec304d620b09dbe74e31683160b697d79ca
Manifest545b40579aff3bccad201eeadcd00080d7eed30aa9ffc1a0df887a83c6761f57

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
SignatureTxcX6o5Gh4VSqo5XaN3zXgdz5+j+X35jd3jzf4aF34Z1yLKzDhUOd8GmJ38Ff0alCM56qo7yUbiEP+1XzuPNBQ==
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

2026-09-17T10:10:24.310799ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077018
observed 734508bd67633fad4dce9aebb6e29ec3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:10:24.288494ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077018/manifest.json
observed 545b40579aff3bccad201eeadcd00080...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:10:24.266025ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077018/publication.md
observed 3ef9d85cb7326638c28cd4c21510483a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:10:24.243107ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077018/publication.txt
observed 7035851abec3104b3db16339fcf67027...
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.