OpenTechnical

OT-2026-000076407

Publication integrity record

Foam pad vacuum gripper, two zone face, per zone isolation, pump fed, pressure sensor per zone, 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-2026-000076407) never changes.

Identity and time

Publication numberOT-2026-000076407 · never reused
Internal UUID01a0ae94-6a70-7fac-9d68-1c847d62d0e4 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:57.307071Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000076407
StatusPUBLIC

Content hashes

Canonical text89d97eb2b87bca7553dceacca78497993824c5b6d8054ff7a2332b2467955b2c
Markdown28e1da0dc37f8e7a20fae6d2c8adddc253f1837b9e5dbdfd70bba1308a6136ac
PDF
Publication pagea1dfd3142e716d1ebc459bb13f7888fe331623a1f2ae4317a84e82b6cfd47359
Manifestd705beafb95ecc2c74be85a84b3e3290ca47146110aed6695d0ca50d9d1bf630

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
Signature+AZyzn7h2BiOcMD3XailYOKncal5VaQcP1VIl5KeTAdfuxD2W4kPnwwJnZ1aVJuXyiUEEepvwBGYk2wjfeUvCw==
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

2026-09-17T10:12:20.760106ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076407
observed a1dfd3142e716d1ebc459bb13f7888fe...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:12:20.740844ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076407/manifest.json
observed d705beafb95ecc2c74be85a84b3e3290...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:12:20.720337ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076407/publication.md
observed 28e1da0dc37f8e7a20fae6d2c8adddc2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:12:20.698843ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076407/publication.txt
observed 89d97eb2b87bca7553dceacca7849799...
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.