OpenTechnical

OT-2026-000081073

Publication integrity record

Four bellows cup vacuum gripper, four zone face, common isolation valve, two stage ejector, 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-2026-000081073) never changes.

Identity and time

Publication numberOT-2026-000081073 · never reused
Internal UUID01a0ae96-b976-76aa-8b27-32c10af6ef59 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:28.739380Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081073
StatusPUBLIC

Content hashes

Canonical text38353577b0f73c9ac4349676ae068d4a216f0a5eb89a0706aff9540b176f828b
Markdown4bffb0c624305d8101c2f437ddc1f60928b44f80e10707bc3e04bd4d1ed937f5
PDF
Publication pageb361ae54e4cc2aafdb684396b6468eb0fb423ebe21d86b9971e7eaa8729ba197
Manifest3fd5663d010e0742e798e112ad56770060957b61e815cc2219a88cee5eb53be2

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
Signature+COxhWq3hN6slJCL1aWh2UaQXHCejoZi1wS65YNDLOgNZYA26h1KNakF96lA1hS8E8YRopLI39SKVYcpxd7VCA==
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

2026-09-17T10:02:22.309492ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081073
observed b361ae54e4cc2aafdb684396b6468eb0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:22.291771ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081073/manifest.json
observed 3fd5663d010e0742e798e112ad567700...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:22.274199ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081073/publication.md
observed 4bffb0c624305d8101c2f437ddc1f609...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:22.257470ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081073/publication.txt
observed 38353577b0f73c9ac4349676ae068d4a...
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.