OpenTechnical

OT-2026-000049611

Publication integrity record

Three cup vacuum gripper, three zone face, three outlet manifold, single stage ejector, 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-2026-000049611) never changes.

Identity and time

Publication numberOT-2026-000049611 · never reused
Internal UUID01a0ae81-8f7d-7147-8366-deedf81c8878 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:35:21.728203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000049611
StatusPUBLIC

Content hashes

Canonical text5af460f8ae9692bbf277f53b12280333d75781ce7eac6c51e8ba0c2be7754841
Markdown9db73b7064f89b1a2a2f02470704b57d31844ce989fe66a725a15dad79d242ca
PDF
Publication page203ed76163c3a5287d5af2a8d139a255fcdf1a9a89610b604ada2d6cbc1d4686
Manifest8b4ebe72138e9e9891715005d3aea78d02e704f595456b3628e13a09a676266d

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
SignatureUcfumPcb+Vt/XEyjKPzNHUEhEyWzKmNPZMhCWZVX//4DAdUGyd8kOHXASXYIYTwzjzq1SwaRW1/MD6tN30JuDw==
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

2026-09-17T11:02:35.773960ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049611
observed 203ed76163c3a5287d5af2a8d139a255...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:35.755951ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049611/manifest.json
observed 8b4ebe72138e9e9891715005d3aea78d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:35.735087ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049611/publication.md
observed 9db73b7064f89b1a2a2f02470704b57d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:35.713270ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049611/publication.txt
observed 5af460f8ae9692bbf277f53b12280333...
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.