OpenTechnical

OT-2026-000005911

Publication integrity record

Porous face vacuum gripper, three outlet manifold, pump fed, pressure verified, vented before set down

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-2026-000005911) never changes.

Identity and time

Publication numberOT-2026-000005911 · never reused
Internal UUID01a0a948-f226-74ff-91ab-bf781064c50e · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:15:25.224978Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000005911
StatusPUBLIC

Content hashes

Canonical textea4bed077bff8b09fe2517c8957d5ee3b8ad21b4f79d97392874b8f001144724
Markdowncd603d7a78bd650e22a15a350c7bf566f812be8a0b3fcaa2843e1b23ba983251
PDF
Publication pagec538fea3db2b668b7a14a320beb5463167899c872a906dfd1dfc200d2f0d5bda
Manifest2e9baf39ac3442aa0318cce1fb93f029365ca66fe0b714bb3493a4c99f0cd0c6

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
SignatureoBWo5105UlCWYN605e8KFsKouOvPE7npnXLoFwEtr2jQyQE2Lpyy815U0Us9PwCijLQxxuSxSYO31ciFdwcKAw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:27:03Z
batch OT-TS-2026-W38-012 · RFC 3161 token · inclusion proof
root dbe93cb6b2158496df2f60f3b6822537...

Independent retrieval

2026-09-16T08:20:18.448849ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005911
observed c538fea3db2b668b7a14a320beb54631...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:18.434731ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005911/manifest.json
observed 2e9baf39ac3442aa0318cce1fb93f029...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:18.417329ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005911/publication.md
observed cd603d7a78bd650e22a15a350c7bf566...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:18.400980ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005911/publication.txt
observed ea4bed077bff8b09fe2517c8957d5ee3...
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.