OpenTechnical

OT-2026-000068498

Publication integrity record

Foam pad vacuum gripper, three zone face, three 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-2026-000068498) never changes.

Identity and time

Publication numberOT-2026-000068498 · never reused
Internal UUID01a0ae90-2481-7ced-b023-fb2cf8b2f994 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:51:17.262143Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000068498
StatusPUBLIC

Content hashes

Canonical text8f41a30a8d9c86cbf17230eca36adaed83f8bb676d3937801f14e5b309a6698c
Markdownebbe55ab2b42d77a1983d32a226c2cdf774f0d05715b9b2956d25d39cbcd8429
PDF
Publication page02cf7f856df26f6c0442792e1b2df358a2d790466166cd1155d2e0920d426a62
Manifest399bdcb2be6e20bd2da293479241b869a66ea26fc4ee2bb2a7362b29d2081d85

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
SignatureAGyKMXMLscihJr1Ygtu5YjDsS7uysEqiR1Un5Jc0AzikblLwX/WlhHM/12Aqv2AMw81gGCEPq6qhzHKXgzs+Ag==
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

2026-09-17T10:29:39.387912ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000068498
observed 02cf7f856df26f6c0442792e1b2df358...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:29:39.368864ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000068498/manifest.json
observed 399bdcb2be6e20bd2da293479241b869...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:29:39.351966ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000068498/publication.md
observed ebbe55ab2b42d77a1983d32a226c2cdf...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:29:39.333144ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000068498/publication.txt
observed 8f41a30a8d9c86cbf17230eca36adaed...
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.