OpenTechnical

OT-2026-000027355

Publication integrity record

Three cup vacuum gripper, three zone face, pump fed, pulsed blow-off 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-2026-000027355) never changes.

Identity and time

Publication numberOT-2026-000027355 · never reused
Internal UUID01a0ae72-6997-78e8-8a20-01df53d4b6e7 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:18:48.928538Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000027355
StatusPUBLIC

Content hashes

Canonical textcba9f908bb638f82cfea2b2c5025cd0bca1d713676db81e3741029768b1a568c
Markdown89c6beea2fc57be46b27f06615e5e05678f91ed11ee1d6981e1b648544f67824
PDF
Publication pageea23e2ef93784c268778235961863243ae2e3f532f9366b6977454bb0d24329f
Manifestdb1dbf6057d25896b8fa306d10f93bce5bf8b88f481fc987d79eea63704c1ae0

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
SignatureNK4mrZAZ301cPDsXOywJ2uNYjVzrUUPgqVj/Nx7rQd3W1kJQbc3QuxWD5BzWJfwcMtL3HhC42kLSK4nf2FJvBQ==
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

2026-09-17T11:42:45.945666ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027355
observed ea23e2ef93784c268778235961863243...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:45.924481ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027355/manifest.json
observed db1dbf6057d25896b8fa306d10f93bce...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:45.904918ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027355/publication.md
observed 89c6beea2fc57be46b27f06615e5e056...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:45.887065ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027355/publication.txt
observed cba9f908bb638f82cfea2b2c5025cd0b...
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.