OpenTechnical

OT-2026-000021427

Publication integrity record

Four bellows cup vacuum gripper, four zone face, per zone isolation, plant vacuum fed, 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-2026-000021427) never changes.

Identity and time

Publication numberOT-2026-000021427 · never reused
Internal UUID01a0ae6f-865d-7014-afcf-2404096049f7 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:39.631048Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000021427
StatusPUBLIC

Content hashes

Canonical text8895024be4212c68b1c623301ca7ff20d023c845ec3f2f17e1103db476449f57
Markdown57ca6834d33b7fb8ad526e250018923acbf238da9dae75b80b7bd9b0fae47da1
PDF
Publication paged46ba37bdbcd9402a3cf0ab81506db80e6f91122c231a9c245d000809e2a4329
Manifest2e64af76c6db56c25ddca301810329bf17ab519c105d9c8c0faa0f76feb1bf4e

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
SignaturenNZmzZ8grz1OG/IKhjynbVdoUsc2+EzvBd5sT8uUYkjtm3Od6fuRNCMZhfclgArr86pwOV5Vn+U0zHC4Xe4jDQ==
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

2026-09-17T11:55:19.906273ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021427
observed d46ba37bdbcd9402a3cf0ab81506db80...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:19.884162ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021427/manifest.json
observed 2e64af76c6db56c25ddca301810329bf...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:19.860125ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021427/publication.md
observed 57ca6834d33b7fb8ad526e250018923a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:19.834099ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021427/publication.txt
observed 8895024be4212c68b1c623301ca7ff20...
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.