OpenTechnical

OT-2026-000077653

Publication integrity record

Foam pad vacuum gripper, two zone face, two outlet manifold, pump fed, pressure sensor per zone, 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-2026-000077653) never changes.

Identity and time

Publication numberOT-2026-000077653 · never reused
Internal UUID01a0ae95-2ecf-73df-ae6d-caa8f53332c8 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:47.703064Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000077653
StatusPUBLIC

Content hashes

Canonical text2b7895902158ef9e01d1488be7aae4de33caed87351fda1a7ab8935bb6f690e9
Markdown2e55081c21a8e73f942a196b4c8b422ecb52fed0fe192f198358c4feb00915db
PDF
Publication pagef07c0ff7b6a38dd80aa2f9ace1d3f50eb90415a1efc36b16e91522327bb26b25
Manifest9cbd69067554ab83ec591963c16e2c4be4f29f00e7532bd4b7a855b5b5a32873

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
SignatureqCA4zy6M+LyFleRkUTR+TwQgtE0NlFWJQigwHnR5QO2vESWFOLupD730VK0EsWY7gCPOpJjAiDKHba/xh03vAg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:07:13.248975ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077653
observed f07c0ff7b6a38dd80aa2f9ace1d3f50e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:07:13.231140ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077653/manifest.json
observed 9cbd69067554ab83ec591963c16e2c4b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:07:13.210510ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077653/publication.md
observed 2e55081c21a8e73f942a196b4c8b422e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:07:13.191036ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077653/publication.txt
observed 2b7895902158ef9e01d1488be7aae4de...
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.