OpenTechnical

OT-2026-000102187

Publication integrity record

Two bellows cup vacuum gripper, two zone face, common isolation valve, plant vacuum fed, 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-2026-000102187) never changes.

Identity and time

Publication numberOT-2026-000102187 · never reused
Internal UUID01a0aea4-50f3-7eda-863c-7c43e83fe57e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:13:19.361569Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000102187
StatusPUBLIC

Content hashes

Canonical text25200847fbe049ffe0d2e2ddeb10dff79b797b05852eb07023d39c73e9475aab
Markdown134aba388898f694492ac6d0e446a27e65458ba67daa9d0b591e02be199865e5
PDF
Publication pagea445acc5faeff51d8439eb62d635e80c5044746fb22e9c1e833923418d200804
Manifest4d174066b0461d97ca39545e914617190142ac6a7ffe567464ca5d2c06778e51

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
Signature1wVLXRtPi3TVqZnZWMROQa3UFBD1WTgcU1hIQJMwSIKsrH/pRWYfBy9vanQU2yKucgoda2lsvUwAEoEva4TGAQ==
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

2026-09-17T09:24:25.410216ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000102187
observed a445acc5faeff51d8439eb62d635e80c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:24:25.392893ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000102187/manifest.json
observed 4d174066b0461d97ca39545e91461719...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:24:25.374199ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000102187/publication.md
observed 134aba388898f694492ac6d0e446a27e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:24:25.354754ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000102187/publication.txt
observed 25200847fbe049ffe0d2e2ddeb10dff7...
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.