OpenTechnical

OT-2026-000074724

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, pump 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-2026-000074724) never changes.

Identity and time

Publication numberOT-2026-000074724 · never reused
Internal UUID01a0ae93-ac2b-7aab-8a75-14b0df141230 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:08.693295Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000074724
StatusPUBLIC

Content hashes

Canonical text146e0ea13b4e6eede08610f990373381f011d713e48a0a314d79e750870cc054
Markdown6dc608293b3ff0d6199c29b2983d84713941ed12c08daac4dddbc5e0f70006e4
PDF
Publication page9d73f46cc538188dacf6462cc1b6320a116d9aec029a657f614b724efe42ed13
Manifest2c4b591bdd3272c41da53105f58e91c1c9692684a342eb5e57731b5154f255b9

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
Signature9bEguEV+bTzUpYg66z2eTqI5x6zkd44DHIjX9nExVSllsT6vBmFVLKA39diKczhFp6L9IvtRciQDpr3At8MqAA==
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

2026-09-17T10:18:19.375478ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074724
observed 9d73f46cc538188dacf6462cc1b6320a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:18:19.356999ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074724/manifest.json
observed 2c4b591bdd3272c41da53105f58e91c1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:18:19.337898ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074724/publication.md
observed 6dc608293b3ff0d6199c29b2983d8471...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:18:19.318830ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074724/publication.txt
observed 146e0ea13b4e6eede08610f990373381...
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.