OpenTechnical

OT-2026-000050361

Publication integrity record

Single cup vacuum gripper, common isolation valve, three stage ejector, 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-2026-000050361) never changes.

Identity and time

Publication numberOT-2026-000050361 · never reused
Internal UUID01a0ae82-5c47-73c4-af33-1b0dc382d298 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:36:14.042293Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000050361
StatusPUBLIC

Content hashes

Canonical textd0433b907a05bf0bf6be900ad7516d1aa3956779a45a2f2d5d561c7185d62acb
Markdown1f6d9569a25dcb33ab504135f2ea0364ec60b8d7f5ba4ee993bd3d78f70b28ab
PDF
Publication page0f983b39e2f1ffccb78e42eaf81f3c99131226f81715168836fc8c8de56492e9
Manifest3a7a4609c832eaa17fa8d00009d9d431f618862c41b5b5f9d2183a3e23766989

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
SignatureMAxDeL/ZkbBgjUW+QICOtUzHlzKjDeFkF+5ZA5fdjrULTyoSBbOcnylBXIXQUfGu3qBwtmZu1mN+vrtra+AQBg==
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

2026-09-17T11:01:23.634597ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050361
observed 0f983b39e2f1ffccb78e42eaf81f3c99...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:23.618318ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050361/manifest.json
observed 3a7a4609c832eaa17fa8d00009d9d431...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:23.601330ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050361/publication.md
observed 1f6d9569a25dcb33ab504135f2ea0364...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:23.584748ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050361/publication.txt
observed d0433b907a05bf0bf6be900ad7516d1a...
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.