OpenTechnical

OT-2026-000090271

Publication integrity record

Two cup vacuum gripper, two zone face, two stage ejector, pressure sensor per zone, sustained 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-2026-000090271) never changes.

Identity and time

Publication numberOT-2026-000090271 · never reused
Internal UUID01a0ae9c-4290-7f43-9069-97b05577315a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:31.390046Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090271
StatusPUBLIC

Content hashes

Canonical text5cb2fc872cdc37c5c0ba0c5e6d49fcdb0197be7bc8d9d963fd4c322628b3632b
Markdown29d50d578b72f977b22b28c34035e355d5d410b11fc6ef08edf95d9ee6ec5e28
PDF
Publication page813b3ce2e15d4152848aefa75f3243d9c122e4fffa554f5cf7c617e950321f57
Manifest39b90e8993609c14e78459ea7fec9bb6fed33f02bfcdb01672e9a691cb284ca1

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
Signatureqhlh4tTG4soIQEUVTSXjT8+vKwqjsrhlTN1bxCyrKHyKAV4qqORAxDwGlVxAx6kZk4rly/74OFdE40g4UpyADg==
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

2026-09-17T09:46:21.126647ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090271
observed 813b3ce2e15d4152848aefa75f3243d9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:21.109458ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090271/manifest.json
observed 39b90e8993609c14e78459ea7fec9bb6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:21.089535ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090271/publication.md
observed 29d50d578b72f977b22b28c34035e355...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:21.072206ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090271/publication.txt
observed 5cb2fc872cdc37c5c0ba0c5e6d49fcdb...
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.