OpenTechnical

OT-2026-000053358

Publication integrity record

Four pad foam vacuum gripper, four outlet manifold, plant vacuum fed, vented 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-2026-000053358) never changes.

Identity and time

Publication numberOT-2026-000053358 · never reused
Internal UUID01a0ae85-0a16-77f8-a401-68eb99be3aa3 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:39:09.762364Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000053358
StatusPUBLIC

Content hashes

Canonical textd5fc5b7234a850a95aee4d45a173870c71a409aa872a100f053b066211bb50e9
Markdownbbfcda3422ae25717f9b2155ce0db6f96684724d4375b3a5542f371b8fe41c25
PDF
Publication page63515f6c2b37153466adbea605ccb11342f3f9541728721c8b305325c51f8edf
Manifest27284999838abac2002bea2968424d593cec54cd491debdf8cca21b09a90318b

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
Signature+544BOH0VdLNoDILV8DTqDM2fqz8KxPP5BaemPJ+BCgKhtUlZCi4RcbCDWd2EWpz3XbnSClBOWnBVSNypZhLAg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...
timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T10:55:04.283829ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000053358
observed 63515f6c2b37153466adbea605ccb113...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:55:04.266182ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000053358/manifest.json
observed 27284999838abac2002bea2968424d59...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:55:04.246681ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000053358/publication.md
observed bbfcda3422ae25717f9b2155ce0db6f9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:55:04.227869ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000053358/publication.txt
observed d5fc5b7234a850a95aee4d45a173870c...
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.