OpenTechnical

OT-2026-000030515

Publication integrity record

Two bellows cup vacuum gripper, two zone face, three outlet manifold, 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-2026-000030515) never changes.

Identity and time

Publication numberOT-2026-000030515 · never reused
Internal UUID01a0ae73-e504-7910-8137-395a48d2d579 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:20:26.007257Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000030515
StatusPUBLIC

Content hashes

Canonical text4643f0318e00b2b89b6631c8b3a1a5fcbf08aaddd064c294509ab1d6df459555
Markdown98ddf460e7563313b593977599814dce818d741ab79c9105461341594800c281
PDF
Publication pagea896e0430c623be7f9f312eb53154462786405848cc38ae98664f7ccce7fdf53
Manifestc957e43081896246318179e899dc2145a63602c65cfed953c3f06459d57f0a75

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
SignatureTqLmGqzqSssq8HLQMnu7sElkvJYkbbsledlwgW7aQNWP/TYOc7BMtF+gJEOmp/1j4wyMOGI6S67QxFMN1WXZDQ==
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

2026-09-17T11:38:22.700372ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030515
observed a896e0430c623be7f9f312eb53154462...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:22.682616ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030515/manifest.json
observed c957e43081896246318179e899dc2145...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:22.661837ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030515/publication.md
observed 98ddf460e7563313b593977599814dce...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:22.643900ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030515/publication.txt
observed 4643f0318e00b2b89b6631c8b3a1a5fc...
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.