OpenTechnical

OT-2026-000006374

Publication integrity record

Porous face 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-2026-000006374) never changes.

Identity and time

Publication numberOT-2026-000006374 · never reused
Internal UUID01a0a958-bdce-79db-a1df-3a5d9086156b · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:32:40.401480Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006374
StatusPUBLIC

Content hashes

Canonical textd245d6676b99c01a53510131ef88317e570695cc3fdb316a3652ed1ac40a0390
Markdown34c0ee141a595010a01507997f112ba755760b5acbaaa21285920e8c9038d21f
PDF
Publication page50f6d5fb29b537f9cb1b155e33e69206bec1b516834ba8bdcd2a3f52966fe20e
Manifest1cb3d93972e60088228b2c6bf6574e7004f6718c798f97100a26710f13cb9342

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
SignaturegxEpK9h81Jz2MJVj6DmgfTDX8ceHA8L8ODrg1kWN3vWYkwxs9Z9a9HcgO2PjToPiln/3lkUU0UlwZ5s5SiiBAw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:47:03Z
batch OT-TS-2026-W38-013 · RFC 3161 token · inclusion proof
root e368e9c5ab06dc5cb1b0682dd54c11f5...

Independent retrieval

2026-09-16T08:40:25.240948ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006374
observed 50f6d5fb29b537f9cb1b155e33e69206...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:40:25.225418ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006374/manifest.json
observed 1cb3d93972e60088228b2c6bf6574e70...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:40:25.209915ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006374/publication.md
observed 34c0ee141a595010a01507997f112ba7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:40:25.195538ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006374/publication.txt
observed d245d6676b99c01a53510131ef88317e...
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.