OpenTechnical

OT-2026-000086031

Publication integrity record

Three bellows cup vacuum gripper, three zone face, per zone isolation, 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-2026-000086031) never changes.

Identity and time

Publication numberOT-2026-000086031 · never reused
Internal UUID01a0ae99-e82b-7c47-ba68-5dc69cf0a2a2 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:01:57.178584Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000086031
StatusPUBLIC

Content hashes

Canonical textd613bc4ebb66aeaea537cbd7037205b882acb3fce6cc3d683c7954f55c7a52de
Markdownd51c14b214e38cf68a8eede43806af8d847a73fdc6d4cd954ed4100c7383e776
PDF
Publication page44027d2d86cff3e26ca0098bbd4a9124a39e05cdd86cbf9f91225a8e712cef78
Manifest85015b2cfe39719e363c1d03606138285aac7670ec8227ea2f1cf69d0f275db8

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
Signaturep6pEkoWD6yyWGixn5rNSFr+bDDnmOI/BTIdybvZRXMtefwpsIcTKxv1bV1wmdqVOVJF+WJe/+hI8exdpiEiFDg==
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

2026-09-17T09:53:01.446206ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086031
observed 44027d2d86cff3e26ca0098bbd4a9124...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:53:01.428383ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086031/manifest.json
observed 85015b2cfe39719e363c1d0360613828...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:53:01.400968ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086031/publication.md
observed d51c14b214e38cf68a8eede43806af8d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:53:01.382245ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086031/publication.txt
observed d613bc4ebb66aeaea537cbd7037205b8...
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.