OpenTechnical

OT-2026-000074993

Publication integrity record

Four bellows cup vacuum gripper, four zone face, four outlet manifold, three 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-2026-000074993) never changes.

Identity and time

Publication numberOT-2026-000074993 · never reused
Internal UUID01a0ae93-ac2d-7de1-89d5-98871f07e7a7 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:08.693295Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000074993
StatusPUBLIC

Content hashes

Canonical text31de8c526b823cff4fda9fb58fdd78f59982abf79c257d7e003e9859fd9bd4be
Markdownf2b620b85b98363dc0ded02a59be08778efdcc3d12c02c7ed5d832cfb9a810c5
PDF
Publication page57ffd7970d64ed5b9b5c8447c34e6836aec2d76e093f2af060acf1499395c663
Manifestf30b12c6a2ed719bddcb6f23b7724dd89c20c3d32dcb8b1003877996ea809386

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
SignatureqEaxUCs2XqpQprJEHAxMSa2akMBsyRDdPUEHCiT2XA8raM2XZsIicRBNTSbFMJt/jJtEqUw+5EL6BBPHMtQlBw==
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

2026-09-17T10:18:47.992314ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074993
observed 57ffd7970d64ed5b9b5c8447c34e6836...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:18:47.974505ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074993/manifest.json
observed f30b12c6a2ed719bddcb6f23b7724dd8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:18:47.958685ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074993/publication.md
observed f2b620b85b98363dc0ded02a59be0877...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:18:47.942490ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074993/publication.txt
observed 31de8c526b823cff4fda9fb58fdd78f5...
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.