OpenTechnical

OT-2026-000074438

Publication integrity record

Six bellows cup vacuum gripper, six outlet manifold, plant vacuum fed, supply line pressure sensor, 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-2026-000074438) never changes.

Identity and time

Publication numberOT-2026-000074438 · never reused
Internal UUID01a0ae93-717a-7cdb-87a2-c2394b0e6008 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:53.574555Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000074438
StatusPUBLIC

Content hashes

Canonical text8f1dd100eeed3598395061ced70a27a61c7aab8182ef87f175b66c2c02c59be1
Markdown8ad76dccf3d6e864b30ae750e115bfd626b6e7e09c17a063bd0d47c8c3d164e6
PDF
Publication page3b99a7e5584fee88f50177f5a25eef9aa6ec90de2d199cc5b562c0c6187ecafa
Manifest7e7edfd36d779568a581d9d7dd25565561f713f1d2aba9141806c3c49eca8ed6

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
SignatureBC5NLCQj+UIuOs+X+rzQlmQPc58YZu09Vmak33uS8rvTHUEphB6QN+G19ioaj7shiTZOR44xJk+bmtV/M+dcBA==
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

2026-09-17T10:19:23.465817ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074438
observed 3b99a7e5584fee88f50177f5a25eef9a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:23.445396ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074438/manifest.json
observed 7e7edfd36d779568a581d9d7dd255655...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:23.424014ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074438/publication.md
observed 8ad76dccf3d6e864b30ae750e115bfd6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:23.404695ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074438/publication.txt
observed 8f1dd100eeed3598395061ced70a27a6...
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.