OpenTechnical

OT-2026-000071564

Publication integrity record

Single bellows cup vacuum gripper, two stage ejector, vented before set-down

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-2026-000071564) never changes.

Identity and time

Publication numberOT-2026-000071564 · never reused
Internal UUID01a0ae91-e0ee-7566-bfc8-90a61e28f186 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:11.039722Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000071564
StatusPUBLIC

Content hashes

Canonical textda4b24fa536a5ae17f437ec2dd4f381ac4d4ae5363dda5b57f10eb3675c7d111
Markdown86fb4cd5ffeee66d22a93cfd35be026ac26d77fedaf4f361b7c691cde04cbb9e
PDF
Publication pageb1f6418ca4cfe5cc23e9beb78c072fb6723ddc7ed5d3556035696d537ac1df43
Manifest4433f9b067c4946e10d9910ad7f55d106bb33461ee5afe90d354eeb6a4f9b3e3

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
SignatureuydqhqdJLGGSgZ/HYdE8Bn+/39i90U9sR+eOudeltMGP0ruw+qQFQWrHow80D5gkG4quDK6xjSKwPbqyV0kQCA==
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

2026-09-17T10:25:13.152589ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071564
observed b1f6418ca4cfe5cc23e9beb78c072fb6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:13.133998ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071564/manifest.json
observed 4433f9b067c4946e10d9910ad7f55d10...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:13.114772ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071564/publication.md
observed 86fb4cd5ffeee66d22a93cfd35be026a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:13.098342ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071564/publication.txt
observed da4b24fa536a5ae17f437ec2dd4f381a...
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.