OpenTechnical

OT-2026-000091152

Publication integrity record

Four bellows cup vacuum gripper, four zone face, common isolation valve, pump fed, pressure sensor per zone, sustained blow-off before set-down

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-2026-000091152) never changes.

Identity and time

Publication numberOT-2026-000091152 · never reused
Internal UUID01a0ae9c-f16b-79e3-9b7e-4503c37bcec3 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:16.158740Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091152
StatusPUBLIC

Content hashes

Canonical text20480aff02e59d790f58885a5f6df2d15a9c228007131fcf8302448a129b2158
Markdown40687b7596921cb987fbb7728553609882517637ac435012d44fa6ac0820460e
PDF
Publication page13c70dd83e5b3aff347a6c1e7921b8db9aafa098eeda0e22cfa38a2512798b25
Manifest024639ff38c237cc2af20e4b6b9a23b697e3ae20c39afd6f29c15a93c6254bca

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
SignatureIuB+G9zOwdjKc9ZtdOYyAnMY40kK2oe/vyapjihrqXIWkcaf3DjIj1UfomBe7cpDHO5BJ1QGh1U0y5+ye5HoAg==
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

2026-09-17T09:43:18.265816ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091152
observed 13c70dd83e5b3aff347a6c1e7921b8db...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:18.247710ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091152/manifest.json
observed 024639ff38c237cc2af20e4b6b9a23b6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:18.229859ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091152/publication.md
observed 40687b7596921cb987fbb77285536098...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:18.211193ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091152/publication.txt
observed 20480aff02e59d790f58885a5f6df2d1...
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.