OpenTechnical

OT-2026-000019087

Publication integrity record

Two bellows cup vacuum gripper, two zone face, single stage ejector, 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-2026-000019087) never changes.

Identity and time

Publication numberOT-2026-000019087 · never reused
Internal UUID01a0ae6e-d523-778c-bcbb-71779f04d3f4 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:14:54.261386Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000019087
StatusPUBLIC

Content hashes

Canonical text57240aa17fa0f7c945e8d6934bbe760c8953bdc04841c546b4b6e36e304718bc
Markdownadc085224a6b00e5c9073d4aeba26da5b3f275fbe16e2b20dc90f6bc5f08e170
PDF
Publication page014c6e497023162a61b2fd84e633db1f9a36ac117667578f0b315412f00079aa
Manifest07cd9abbe0cac362cf57c59c71440c944d7d992cac2c8532d24e4f530b883455

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
SignatureDm/EYLe5+RF8cM+MfU35ilnD20ljbzx7tM0o2gsdMVFw55jsxQ8r98i5YinaEyeCWWNJZXnJ/KgXivwekU0VCg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:59:47.588572ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019087
observed 014c6e497023162a61b2fd84e633db1f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:47.571478ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019087/manifest.json
observed 07cd9abbe0cac362cf57c59c71440c94...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:47.551376ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019087/publication.md
observed adc085224a6b00e5c9073d4aeba26da5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:47.528783ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019087/publication.txt
observed 57240aa17fa0f7c945e8d6934bbe760c...
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.