OpenTechnical

OT-2026-000021113

Publication integrity record

Three cup vacuum gripper, three outlet manifold, common isolation valve, three stage ejector, manifold pressure sensor, 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-2026-000021113) never changes.

Identity and time

Publication numberOT-2026-000021113 · never reused
Internal UUID01a0ae6f-865b-70dd-8eb8-f332dd85c052 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:39.631048Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000021113
StatusPUBLIC

Content hashes

Canonical text83ad4085069f3d2a3bbec5a61e8843f06658f096db1eb0e37ed1e5c840ef18e4
Markdown5bb2569444c64a9c4cb871c348030875ffe782e78503284b0975e469b0587106
PDF
Publication page2178a17521a7604d433eb9f2dadd4d6b236bef0f12fcec705daf37b9f4bb5e71
Manifestd671f0ef6d41c0d83e98b2b5a2957cfc755927363aa50be0c78abf6ac96f4e00

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
SignatureyReJ8vKTkY/NPjLU321Mr65i0f/5bUYmZ1U3yZss+nnKfWOPGvsWHZ4JqZ+hQw3TozaRZWcbdJ1klHDq+7j0Aw==
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

2026-09-17T11:54:51.329034ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021113
observed 2178a17521a7604d433eb9f2dadd4d6b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:51.313611ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021113/manifest.json
observed d671f0ef6d41c0d83e98b2b5a2957cfc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:51.297798ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021113/publication.md
observed 5bb2569444c64a9c4cb871c348030875...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:51.279815ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021113/publication.txt
observed 83ad4085069f3d2a3bbec5a61e8843f0...
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.