OpenTechnical

OT-2026-000075622

Publication integrity record

Single bellows cup vacuum gripper, 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-2026-000075622) never changes.

Identity and time

Publication numberOT-2026-000075622 · never reused
Internal UUID01a0ae94-29fd-7835-820a-e9f6266a043a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:40.814795Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000075622
StatusPUBLIC

Content hashes

Canonical text61e9c5a4062c9f248396cd141959d0c93cff0b4fb79f30f3ba2b4a0f0d117ec6
Markdownb9463ee734edf34a7b90635ca01a7e7a976fd2691e084e970ac8b1579cfd62ad
PDF
Publication page2939653d3b70e3c5591e1c1777eca9a44d4754ed32256c4ffc8fcb6e09446a2a
Manifest095e171289353ab5aeffa44d58a22de679f5bb45f474c5917386229e27422038

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
SignatureCGPj7VYZRdlc/LqVTAt9/J/Al8vNjaD25RdHWCJRNBtbca4tDMpRdx9J1+zQXpmaj0/gz5hEkHXszZfGu3MXDQ==
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

2026-09-17T10:13:20.468197ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075622
observed 2939653d3b70e3c5591e1c1777eca9a4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:13:20.445843ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075622/manifest.json
observed 095e171289353ab5aeffa44d58a22de6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:13:20.302347ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075622/publication.md
observed b9463ee734edf34a7b90635ca01a7e7a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:13:20.281210ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075622/publication.txt
observed 61e9c5a4062c9f248396cd141959d0c9...
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.