OpenTechnical

OT-2026-000077647

Publication integrity record

Two bellows cup vacuum gripper, two zone face, two outlet manifold, pump fed, pressure sensor per zone, pulsed 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-2026-000077647) never changes.

Identity and time

Publication numberOT-2026-000077647 · never reused
Internal UUID01a0ae95-2ecf-720b-8c9f-d450cd035792 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:47.703064Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000077647
StatusPUBLIC

Content hashes

Canonical text1987ba79b2bb8579579906064a848c3f10fd789a85c0f9cb8f701bf91ccd43fd
Markdown3dea4594fe393c137d2dce94799c5e70014cac679afe136134c269dcd178bc1d
PDF
Publication pagefad91921bc673c58e4ac1b011b9e08ea4ed7f51dfb3646900bc258834c12edc3
Manifest0b6721fc512c69ca4896de2e792b8613958ec765cb974ace44c6419085d90ec8

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
Signature7liP3HLRFiOCHQpE9x0ZzOPvmd91Rq3wh12ZS9h4H2MVCNF99kfgHIcZ4xVuROUK5bG+7H4V+6Df6xCaqVA2Cw==
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

2026-09-17T10:07:12.847112ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077647
observed fad91921bc673c58e4ac1b011b9e08ea...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:07:12.829813ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077647/manifest.json
observed 0b6721fc512c69ca4896de2e792b8613...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:07:12.811517ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077647/publication.md
observed 3dea4594fe393c137d2dce94799c5e70...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:07:12.790944ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077647/publication.txt
observed 1987ba79b2bb8579579906064a848c3f...
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.