OpenTechnical

OT-2026-000103674

Publication integrity record

Foam pad vacuum gripper, four zone face, pump fed, pulsed blow-off after 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-2026-000103674) never changes.

Identity and time

Publication numberOT-2026-000103674 · never reused
Internal UUID01a0aea4-e462-7b6a-a431-73dd3a9a0092 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:13:57.105586Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000103674
StatusPUBLIC

Content hashes

Canonical textfb04fb3649a81928aa431551a6a0ae58704e7b9e56cac5500d1cb180b1814be3
Markdown9214cd118e1aa6ab5baa6df623ccdb59324e4430f768085edd0d8a61a32b89e2
PDF
Publication page28f0be2a9917284b30da98f39ca8ad4164fddd0d1c4f7336222966ce795d11cf
Manifest5faff3f2daafdb95759097655f8135c23171ddb79a7c4d36875355bd28b2776f

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
SignatureifRjAS2hAkzmHm3S+va0KWmsqACwDPN5W0tRXTN9RLx7eG7nH1eVNLm45GGkKtkfxjsl6hpauz6XrFh7P4raBA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:27:04Z
batch OT-TS-2026-W38-023 · RFC 3161 token · inclusion proof
root 095d30148a2ef87d42d7818ebe7543f9...

Independent retrieval

2026-09-17T09:22:28.569643ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103674
observed 28f0be2a9917284b30da98f39ca8ad41...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:22:28.553521ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103674/manifest.json
observed 5faff3f2daafdb95759097655f8135c2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:22:28.538140ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103674/publication.md
observed 9214cd118e1aa6ab5baa6df623ccdb59...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:22:28.520881ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103674/publication.txt
observed fb04fb3649a81928aa431551a6a0ae58...
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.