OpenTechnical

OT-2026-000080713

Publication integrity record

Two bellows cup vacuum gripper, two zone face, common isolation valve, pump 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-2026-000080713) never changes.

Identity and time

Publication numberOT-2026-000080713 · never reused
Internal UUID01a0ae96-b973-7c0c-95fe-35a2ec71db5e · 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-2026-000080713
StatusPUBLIC

Content hashes

Canonical text90770966ce11bcd2200f76773a421b63b61ab4c70fd706c90005234e01c34e61
Markdownc671d68adc9f7f16e05e911b0dbeb6fbb72386b049a55797f33c03758d06e4a6
PDF
Publication page877515f28ec5cfa49d1a6aec2861e1a56c5bf449d89b0527017782048fcab657
Manifest75a4187426041a427094e84d1a95d76ec7f376c15316e0ae5768febf1d23127a

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
Signatureu0bkg722h7xlot/pLMNUvrkKZGRPsjbdGgdUqogBA0h34H4o1lJkS9MP8aQm+ePA7ddj/Sb7nwrc6xGzdAb6Cw==
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

2026-09-17T10:01:44.767859ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080713
observed 877515f28ec5cfa49d1a6aec2861e1a5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:44.751017ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080713/manifest.json
observed 75a4187426041a427094e84d1a95d76e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:44.732944ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080713/publication.md
observed c671d68adc9f7f16e05e911b0dbeb6fb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:44.715547ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080713/publication.txt
observed 90770966ce11bcd2200f76773a421b63...
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.