OpenTechnical

OT-2026-000074543

Publication integrity record

Foam pad vacuum gripper, two zone face, four outlet manifold, pump fed, 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-2026-000074543) never changes.

Identity and time

Publication numberOT-2026-000074543 · never reused
Internal UUID01a0ae93-717b-7646-841b-6d7df605c59b · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:53.574555Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000074543
StatusPUBLIC

Content hashes

Canonical text93a271c78fd8a40a3f1c24d14b0db9c61b09df9983b213db71ea3c5c17fa12d8
Markdown0d578fdf18ed3f43df7faf68bd838ece2cdda5ab68f1b685f6f48204243bd90b
PDF
Publication page8c311c7d481fae669ffb4ae2011195263af75cc17702df2da85f63c65200624a
Manifest419b1d681f9f3b7b3a6d2c592d575406234c7bd9da70cd37dcab605f1a9b36b8

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
SignatureRQmI4Ao/I3yw6E+utkebaMMMjkl3bXQbm4dq2RJPXnIvUks22YyYZUprDssUBNo0SnJUApI54VPbZiug1VYRDQ==
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

2026-09-17T10:19:31.594589ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074543
observed 8c311c7d481fae669ffb4ae201119526...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:31.575176ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074543/manifest.json
observed 419b1d681f9f3b7b3a6d2c592d575406...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:31.555568ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074543/publication.md
observed 0d578fdf18ed3f43df7faf68bd838ece...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:31.535518ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074543/publication.txt
observed 93a271c78fd8a40a3f1c24d14b0db9c6...
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.