OpenTechnical

OT-2026-000070628

Publication integrity record

Single bellows cup vacuum gripper, 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-2026-000070628) never changes.

Identity and time

Publication numberOT-2026-000070628 · never reused
Internal UUID01a0ae91-8c2b-7c47-a465-8b56f2fcf50a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:52:49.344646Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000070628
StatusPUBLIC

Content hashes

Canonical text1a43c1d7b3496f91a3b018cc50a34d303ac28d089aebb1fbea96738a9801b732
Markdownd00d4b61d3b653daa0ace499175dceaea474c1642fe0c38f87b2c7d70781837f
PDF
Publication page816e61e3e63132d31c9fc52f7d011cd68015f5c38c68d1f8bce9c49cdfad6979
Manifest804e7e93b190f50537c42bda62239eb2e0ee3e18c64c003f2f3cbe3022869164

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
SignatureyCSKFtX1CBfWM5hbhMzA88fVf5s8XJSsLswR3qFAHcFwXl9MD/3GM1xzJmGlm8XO40rk2m1GQUFNzQILx+ZKDg==
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

2026-09-17T10:25:17.691238ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000070628
observed 816e61e3e63132d31c9fc52f7d011cd6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:17.673236ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000070628/manifest.json
observed 804e7e93b190f50537c42bda62239eb2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:17.654289ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000070628/publication.md
observed d00d4b61d3b653daa0ace499175dceae...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:17.637120ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000070628/publication.txt
observed 1a43c1d7b3496f91a3b018cc50a34d30...
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.