OpenTechnical

OT-2026-000045407

Publication integrity record

Foam pad vacuum gripper, three zone face, single stage ejector, 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-2026-000045407) never changes.

Identity and time

Publication numberOT-2026-000045407 · never reused
Internal UUID01a0ae7c-f76c-75f3-838d-e75894a4c682 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:30:20.545172Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000045407
StatusPUBLIC

Content hashes

Canonical text4babb9401392e636627133c2351b3f469d13b640d5c1e5e3fa682b2d6b048ad1
Markdowna1d9c9e9ad9680a931314acc86954aedf0222fb4a4f6625ef0e8d2e39ebb354f
PDF
Publication pagef7a19c6527ba88a60a05c8021aec732b2271e39ae49ea4b7784e704e25bbc76c
Manifestfdcb87865642c255df691c591ce2bbe4deabb7576f389ec7bdb1315c523763de

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
SignatureUDUffrMF6uzn3tRRD8Gd8a9/Q+8Xn52ceCYo2mbTm1c70jQffjG5VzECgFLAzb8Bu02tuZm8A4xi7T9WtvqVBg==
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

2026-09-17T11:10:41.739145ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000045407
observed f7a19c6527ba88a60a05c8021aec732b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:10:41.722079ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000045407/manifest.json
observed fdcb87865642c255df691c591ce2bbe4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:10:41.703798ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000045407/publication.md
observed a1d9c9e9ad9680a931314acc86954aed...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:10:41.685435ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000045407/publication.txt
observed 4babb9401392e636627133c2351b3f46...
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.