OpenTechnical

OT-2026-000050371

Publication integrity record

Two bellows cup vacuum gripper, two zone face, four outlet manifold, pump fed, pressure sensor per zone, pulsed blow-off 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-2026-000050371) never changes.

Identity and time

Publication numberOT-2026-000050371 · never reused
Internal UUID01a0ae82-5c47-7f76-800d-bf09aff385a2 · 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-2026-000050371
StatusPUBLIC

Content hashes

Canonical textb7bf7bd7b9296842a231056f2a2103df498dd6212261baed1790ad558e3367a1
Markdown128b06c788fd9016ebf5a6fa058d59f1a1091f3d64d50f652887273bad104812
PDF
Publication page102487ac6630bdb8d31069efe4c115b1a44c21c39178da975cd6843e717822a9
Manifest687bfd15115f24b7f5bed77fca58f812393a84823a3a59f50bb3aa7cd841a8c2

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
Signature+sF5ln9uz10AwZ+kUkzzzzpQ/gLTMVeXRdWE76hNwznIP+m4i0Nq35WvJk8YPIRy6I+NoTTpyyKdHGaH/+I2DA==
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

2026-09-17T11:01:24.324268ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050371
observed 102487ac6630bdb8d31069efe4c115b1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:24.307790ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050371/manifest.json
observed 687bfd15115f24b7f5bed77fca58f812...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:24.291052ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050371/publication.md
observed 128b06c788fd9016ebf5a6fa058d59f1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:24.273005ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050371/publication.txt
observed b7bf7bd7b9296842a231056f2a2103df...
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.