OpenTechnical

OT-2026-000033017

Publication integrity record

Single cup vacuum gripper, two stage ejector, pulsed blow-off 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-2026-000033017) never changes.

Identity and time

Publication numberOT-2026-000033017 · never reused
Internal UUID01a0ae75-4843-79c4-a54f-8c31ef58bf9f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:57.065765Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000033017
StatusPUBLIC

Content hashes

Canonical texta0b949a0d08a9f36b8afed1448a86ccee370ba2bb3d58746ee42a371c51b56e1
Markdown1a1a9a1a5400786eabd37d74a9a9d744f33ed148f0a713ba52bb586d37a71b70
PDF
Publication page8b502173051d96c9ef8f83c260c7514b0200ce97551a64fec9eb6216d6f77400
Manifest94d153bcf956eb14467aaf6e0268109431d40dc8fc76bcc4ff40102981208eae

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
Signature0K+zUNkOAWPJwjepABWotOds8BdKqOChEqamU7n99s92LwirOZpQJPWVEWXokuGAZKvXWFGgW3OVigxwvQjOBw==
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

2026-09-17T11:32:38.523997ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033017
observed 8b502173051d96c9ef8f83c260c7514b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:32:38.504972ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033017/manifest.json
observed 94d153bcf956eb14467aaf6e02681094...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:32:38.484906ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033017/publication.md
observed 1a1a9a1a5400786eabd37d74a9a9d744...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:32:38.465660ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033017/publication.txt
observed a0b949a0d08a9f36b8afed1448a86cce...
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.