OpenTechnical

OT-2026-000019972

Publication integrity record

Six bellows cup vacuum gripper, six outlet manifold, common isolation valve, single stage ejector, manifold pressure sensor, pulsed blow-off before 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-2026-000019972) never changes.

Identity and time

Publication numberOT-2026-000019972 · never reused
Internal UUID01a0ae6f-1fb7-74fb-98fa-3d26c85157bf · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:13.354643Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000019972
StatusPUBLIC

Content hashes

Canonical textf0323225cbc74406e0e8c7ec4c105c8bdf7a03177b14c6b5f236ac14adddf056
Markdowndd96eaa506ed069404539eb18db87f168330bb2b090fc97feda59d4a1113e701
PDF
Publication page0b2b5a3bca829f24fb9db3ff22de969d4edb08684e0ec426abf91e566e774c09
Manifestfd1d0104e9beaad9d06ae7733b52ee268e4a007b4f014d5df5a4a0504b6efb71

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
SignatureO3zG3J50Pe8Q4AAXVZ9PYyp3nLGt3Tnu1WrZPq1HY5BSomVV0e4lVLPX7LMR6KGgpdhW/9YY0QmTNWofUEpACg==
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

2026-09-17T11:58:12.532120ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019972
observed 0b2b5a3bca829f24fb9db3ff22de969d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:12.510445ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019972/manifest.json
observed fd1d0104e9beaad9d06ae7733b52ee26...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:12.486823ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019972/publication.md
observed dd96eaa506ed069404539eb18db87f16...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:12.468593ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019972/publication.txt
observed f0323225cbc74406e0e8c7ec4c105c8b...
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.