OpenTechnical

OT-2026-000060402

Publication integrity record

Foam pad vacuum gripper, pump fed, vented after 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-2026-000060402) never changes.

Identity and time

Publication numberOT-2026-000060402 · never reused
Internal UUID01a0ae8a-b7cb-718e-b696-0ccb970ab729 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:45:21.818756Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000060402
StatusPUBLIC

Content hashes

Canonical text72ed2e1072aa82a2124a51bbe77996693d5d670fb981adfd1f69a74abb56f8a5
Markdowna83ccbf18b22099ab3610075836272acf2e381f1ac83d401074be1c586d819d7
PDF
Publication page1ec9c97f84d0ca743fe7ea8bbf660f34032f637a7dc1ce7ef77cd1a6bc172f9b
Manifest11eb855ea6eb768b9201cbf60dbbcc7b9642a164e5fe3a85960b48f54f5cbc55

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
SignatureA8i82ZbsssaQNHCLoCYTQVN50ljShhOH8ROGsK08eOgVm2OLu0Room3ihzEvglh6FEF+YjLwGIPYy5gWMsqLDw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...

Independent retrieval

2026-09-17T10:42:52.316847ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000060402
observed 1ec9c97f84d0ca743fe7ea8bbf660f34...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:42:52.299744ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000060402/manifest.json
observed 11eb855ea6eb768b9201cbf60dbbcc7b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:42:52.279791ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000060402/publication.md
observed a83ccbf18b22099ab3610075836272ac...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:42:52.262354ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000060402/publication.txt
observed 72ed2e1072aa82a2124a51bbe7799669...
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.