OpenTechnical

OT-2026-000012887

Publication integrity record

Foam pad vacuum gripper, two zone face, per zone isolation, single stage ejector, 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-2026-000012887) never changes.

Identity and time

Publication numberOT-2026-000012887 · never reused
Internal UUID01a0ae6d-5563-7473-be76-ed59e18e5820 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:16.019734Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000012887
StatusPUBLIC

Content hashes

Canonical textbb03ae30d89a8a8c16c9d6c064a19bcbf1d7bc5afdb07617a73ac042939a88f0
Markdown0404ddceabbd5dc90d1dd40788d21e30f330a74156d8481a5916dd185f40c631
PDF
Publication pagef4075512955f68e07b0b04ef4647eb99fbde146591d36f4d467be7f1dcf7f0dc
Manifest0068b1f3001bdc32993b343def978f9290b260f032000812d1637fa5b84b82bc

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
SignatureG1zf40KyMsDj+wionysEfRpLmkS/CVnjlVigox5mJRoQ95yRoR2IvZ0OhEuxB+oQbTUnKruoDMnIyy369GYQAQ==
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

2026-09-17T12:10:40.572175ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012887
observed f4075512955f68e07b0b04ef4647eb99...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:40.553960ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012887/manifest.json
observed 0068b1f3001bdc32993b343def978f92...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:40.534798ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012887/publication.md
observed 0404ddceabbd5dc90d1dd40788d21e30...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:40.516203ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012887/publication.txt
observed bb03ae30d89a8a8c16c9d6c064a19bcb...
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.