OpenTechnical

OT-2026-000029191

Publication integrity record

Foam pad vacuum gripper, two zone face, common isolation valve, two stage ejector, 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-2026-000029191) never changes.

Identity and time

Publication numberOT-2026-000029191 · never reused
Internal UUID01a0ae73-2aa0-7b69-8014-458a0576cf41 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:38.288761Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000029191
StatusPUBLIC

Content hashes

Canonical text2fff279ecd8312d0628e50b278b379d6160b168139025f829c856b5075eb1966
Markdowne95fd7edae5dd010d08c7697db8293c6e01a81c0e37d1269503ec993dd26215b
PDF
Publication pagee8c2ea022010da6ba0bc0191afa3e0679f20926d87e550e538ec293974ffab30
Manifestd37201e8802ab42f0d8e6647517aa03a011b0aeea2e10e14e65c97ea1a3dcc28

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
SignatureChh4GJg7DtDbyolgS4Nj1QaxcXVizwnGI6aF44RTUlrJUjchzbUnEMCfqXvcdxc7qv+abyva4CvgcwGHESAzAA==
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

2026-09-17T11:39:47.957843ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029191
observed e8c2ea022010da6ba0bc0191afa3e067...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:47.924214ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029191/manifest.json
observed d37201e8802ab42f0d8e6647517aa03a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:47.838884ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029191/publication.md
observed e95fd7edae5dd010d08c7697db8293c6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:47.728713ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029191/publication.txt
observed 2fff279ecd8312d0628e50b278b379d6...
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.