OpenTechnical

OT-2026-000042444

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, single stage ejector, pulsed blow-off after 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-2026-000042444) never changes.

Identity and time

Publication numberOT-2026-000042444 · never reused
Internal UUID01a0ae7a-5d75-7aa9-b4e3-02d05889b310 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:27:30.052779Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000042444
StatusPUBLIC

Content hashes

Canonical texte4ddef46147f95b09e1e6b621dadc2c7fc1240f5963a59c0ab56048fdbdfc87a
Markdownf122c1661a12396d238263b038e7500f9c2a0263b46604c4e3487354ced02b42
PDF
Publication page19c0fc45f900ca196cc8a6cba17d094b7e61106a5e48eaca6695d2770d27b09d
Manifestce2738326f025d0ea0a90b2b71be8fdb71aaa9b37cd5bc838ab72ea232a3fc99

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
SignaturerRFdoVQguY8ihIrEAhhcY9If9N1exmLh/CMgJiHquLimoRYWbFA2PcHbPPaymgx2CwM1p9c+4s6qLMBB6NvvDQ==
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

2026-09-17T11:16:14.880568ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042444
observed 19c0fc45f900ca196cc8a6cba17d094b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:14.863488ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042444/manifest.json
observed ce2738326f025d0ea0a90b2b71be8fdb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:14.845973ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042444/publication.md
observed f122c1661a12396d238263b038e7500f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:14.829587ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042444/publication.txt
observed e4ddef46147f95b09e1e6b621dadc2c7...
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.