OpenTechnical

OT-2026-000087728

Publication integrity record

Foam pad vacuum gripper, two zone face, per zone isolation, single stage ejector, supply line pressure sensor, sustained blow-off before 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-2026-000087728) never changes.

Identity and time

Publication numberOT-2026-000087728 · never reused
Internal UUID01a0ae9a-cd55-7385-9ff3-a82a47335fda · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:02:55.852518Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000087728
StatusPUBLIC

Content hashes

Canonical text70ea6f29e319a5fd25f68a888c2431c875edbb327d04e5dd9fbba0e469525371
Markdown9f43e43362e5a461880db3a49cc72cc6fcd3b12866f735b61ed36260537dc482
PDF
Publication page0a3780a7bf1cf581376fa1c42bdaf3ece4812ab520a828cdfa476aa7c8c69063
Manifest44363cff89f13c1952494b4c280f6cb5dca01322224cb4666e2ce0d417d3e350

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
SignatureK4RC766n1aEcQUf/t/8WSBoOGNlliXhxn5hN0uBe/dOs7e1rLPOwclmqjkgwjUrGRUpJj/BsFnbFZYXI825WAw==
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

2026-09-17T09:51:10.891477ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087728
observed 0a3780a7bf1cf581376fa1c42bdaf3ec...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:10.876761ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087728/manifest.json
observed 44363cff89f13c1952494b4c280f6cb5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:10.860672ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087728/publication.md
observed 9f43e43362e5a461880db3a49cc72cc6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:10.844291ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087728/publication.txt
observed 70ea6f29e319a5fd25f68a888c2431c8...
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.