OpenTechnical

OT-2026-000029551

Publication integrity record

Foam pad vacuum gripper, three zone face, common isolation valve, pump fed, 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-2026-000029551) never changes.

Identity and time

Publication numberOT-2026-000029551 · never reused
Internal UUID01a0ae73-5e22-7e79-9b8a-496e82e21b62 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:51.545382Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000029551
StatusPUBLIC

Content hashes

Canonical text4a2b3626e81629ac07f6d65fc5689ba4131c4e00c6ba907054811080a4fee363
Markdowne35e8467c6baf08cad331d25f99b429a065735d4d79ce5c20b1cf327abbd6779
PDF
Publication page78da87e7c3e0856a5f8a3d7b26cc6b4aa1924e96e953a060f12067602ad060ad
Manifest453ffb0842ce62c658b53fdf133e1c93eb0bd34a2889fecc97c9dbfe99514c28

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
SignatureR32sCFNWgklQXUtlE7PTsdigcXOKK18oqIpBJO1kjgHJd09ODxCXWoVlaeo5TPfZEBFgNnbt2UyEx2pTV82QAA==
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

2026-09-17T11:39:12.507138ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029551
observed 78da87e7c3e0856a5f8a3d7b26cc6b4a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:12.490063ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029551/manifest.json
observed 453ffb0842ce62c658b53fdf133e1c93...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:12.472893ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029551/publication.md
observed e35e8467c6baf08cad331d25f99b429a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:12.455882ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029551/publication.txt
observed 4a2b3626e81629ac07f6d65fc5689ba4...
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.