OpenTechnical

OT-2026-000071395

Publication integrity record

Foam pad vacuum gripper, two zone face, common isolation valve, pump fed, supply line pressure sensor, 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-2026-000071395) never changes.

Identity and time

Publication numberOT-2026-000071395 · never reused
Internal UUID01a0ae91-e0ed-7406-9664-530fe8d81ed5 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:11.039722Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000071395
StatusPUBLIC

Content hashes

Canonical textdb30c4a0c5c105b4e539094a7e1517bb338339a71d58bfdddc8e3f80a5962fe5
Markdown454b1115962ca6d27ae1909a530bf64650de86f17732df929ff7082398e2cf4d
PDF
Publication pageb8b658abb1484f833c86701834b9a6b93b415ef4ec7ba5b68b629d5dd4288b2a
Manifestbbbde2e8a8620ad144cf4742711ae616671a8ac50f0c7c8d7ccb5d90b88fdf76

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
Signature0L8zL+3RWW8kRtiof1qpSe7X0Hn/Y1upVY1VERxx93so0jMJuPDtsY9bGHVngCrA6lloq15Ul99zY5uLyoXoBA==
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

2026-09-17T10:25:01.119698ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071395
observed b8b658abb1484f833c86701834b9a6b9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:01.102779ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071395/manifest.json
observed bbbde2e8a8620ad144cf4742711ae616...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:01.085370ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071395/publication.md
observed 454b1115962ca6d27ae1909a530bf646...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:01.068302ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071395/publication.txt
observed db30c4a0c5c105b4e539094a7e1517bb...
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.