OpenTechnical

OT-2026-000029911

Publication integrity record

Four cup vacuum gripper, four zone face, common isolation valve, pump fed, 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-2026-000029911) never changes.

Identity and time

Publication numberOT-2026-000029911 · never reused
Internal UUID01a0ae73-ac48-758d-b56b-b6f5bab8f66f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:20:11.501096Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000029911
StatusPUBLIC

Content hashes

Canonical text0798e0b6b9d525c383b3398ccd8d136a1fadbe45052fe6845e6b5c118de820a0
Markdowne0d650bd4518824b6cee4602ae4a9edd835d4d3b04209e33e4f1a4ba8c478067
PDF
Publication pagee49478723ace8e835607bfee0ac2e5dff0d8373ede981517b1cc291af89249f3
Manifest3ad25bb37283ff6d41f3f6e8888254bdd3e78e2d57b5d880729daec717e4e452

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
SignatureB3mFx4OhHXLl6sx5T6P+goHiM8jyhnJ8MdPKOv2xGbTSNbr4R93FUE6zbyLxb+uZCe9LT+NhqNHgl7v3jnbrAw==
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

2026-09-17T11:38:36.915019ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029911
observed e49478723ace8e835607bfee0ac2e5df...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:36.898997ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029911/manifest.json
observed 3ad25bb37283ff6d41f3f6e8888254bd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:36.880998ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029911/publication.md
observed e0d650bd4518824b6cee4602ae4a9edd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:36.863222ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029911/publication.txt
observed 0798e0b6b9d525c383b3398ccd8d136a...
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.