OpenTechnical

OT-2026-000072180

Publication integrity record

Single bellows cup vacuum gripper, three stage ejector, 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-2026-000072180) never changes.

Identity and time

Publication numberOT-2026-000072180 · never reused
Internal UUID01a0ae92-47c2-7e9f-87f1-8550832e14a5 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:37.365346Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000072180
StatusPUBLIC

Content hashes

Canonical text56967acfe81c8048c47ee03a9589ba8bd53ef8b80d015150af95901662d61733
Markdownf2054b58f3de2ed7d7327345eefe8d9b685ce01d0480c2b18d51d3eefff4c165
PDF
Publication pageda18f3de1cc272d1e16611da045dc7a4eb54281af602e828cd4d088488e9bf79
Manifesta83c0134be3e0ba9ed684412850b3ca412382ce319d7f7631511e47feee89b65

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
Signaturef4LiGHg0Njb+MYsqTg+C2BQqGD48W+yRj/tBCNLK9JP0gTAQ58vIiXYosO4rYV0z4LSghsYCotxMWQe+wo7yCw==
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

2026-09-17T10:23:16.703229ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072180
observed da18f3de1cc272d1e16611da045dc7a4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:16.686932ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072180/manifest.json
observed a83c0134be3e0ba9ed684412850b3ca4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:16.670103ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072180/publication.md
observed f2054b58f3de2ed7d7327345eefe8d9b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:16.653317ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072180/publication.txt
observed 56967acfe81c8048c47ee03a9589ba8b...
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.