OpenTechnical

OT-2026-000007381

Publication integrity record

Vacuum cup gripper, three zone face, four outlet manifold, pump fed, vented before set down

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-2026-000007381) never changes.

Identity and time

Publication numberOT-2026-000007381 · never reused
Internal UUID01a0a97c-c1b3-7915-80cd-db7ef5bc8531 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T09:12:00.693834Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000007381
StatusPUBLIC

Content hashes

Canonical text26824fb6f2952b1445035f3492eda1c7c306c08e6749de911f1aa4d32899e6ee
Markdown624ee79076934394c298751a94a5845bb22cf318fa121110f6c180b8a05fd9a4
PDF
Publication pagea66ac6e846c9a5bea81d556db02185d294581c16b259b39a1e996de69441ab01
Manifest6ef1ba661f90822cbaf741a4bef6b2395c74e3e90309b0d4da13033edb2ec6b3

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
SignatureYLDqvglyufMueFXKcR/lfeCZXa0pmEL6UE8rakm3mJHnQxG9uVyB7XSHoymwHtu2z5i5sCGqRMzGT4aM7JdOBg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T09:20:33Z
batch OT-TS-2026-W38-015 · RFC 3161 token · inclusion proof
root 07bfbe2fb3517c1c41f239fb2e682fbe...

Independent retrieval

2026-09-16T09:20:08.576793ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007381
observed a66ac6e846c9a5bea81d556db02185d2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:20:08.564606ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007381/manifest.json
observed 6ef1ba661f90822cbaf741a4bef6b239...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:20:08.552639ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007381/publication.md
observed 624ee79076934394c298751a94a5845b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:20:08.540445ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007381/publication.txt
observed 26824fb6f2952b1445035f3492eda1c7...
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.