OpenTechnical

OT-2026-000049055

Publication integrity record

Two bellows cup vacuum gripper, two zone face, two outlet manifold, plant vacuum 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-2026-000049055) never changes.

Identity and time

Publication numberOT-2026-000049055 · never reused
Internal UUID01a0ae81-134d-7dc9-8e9d-46afdca4e2c4 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:34:49.967260Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000049055
StatusPUBLIC

Content hashes

Canonical textbf22397a83ffb5f7de99b58f18b93c34af1c891eb0689f2a8b7ef78b614821fd
Markdown88a6404a1d58d3144227c4647daf76929a0db317d9b4732db68f7602d122d4bb
PDF
Publication page9eddf900f88a5922b863223f4985374e2de6822f0baf7e9b7d1dc8f22d790f88
Manifest569dd16a0cfd434788f52e5f80b1850061f4a05dc3f0ab77010de379757296cb

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
SignatureqOp/n8Yxie1JH4QX8wrTL7R26Km8g9zpkHyBMxIgj7g77fxXv17xDl/XNshnJW5+w6DtC9EyR9KdnuXUUVwwBA==
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

2026-09-17T11:03:17.093513ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049055
observed 9eddf900f88a5922b863223f4985374e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:03:17.071964ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049055/manifest.json
observed 569dd16a0cfd434788f52e5f80b18500...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:03:17.052283ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049055/publication.md
observed 88a6404a1d58d3144227c4647daf7692...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:03:17.031930ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049055/publication.txt
observed bf22397a83ffb5f7de99b58f18b93c34...
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.