OpenTechnical

OT-2026-000043446

Publication integrity record

Two pad foam vacuum gripper, two outlet manifold, plant vacuum fed, sustained blow-off after 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-2026-000043446) never changes.

Identity and time

Publication numberOT-2026-000043446 · never reused
Internal UUID01a0ae7b-327f-72b1-bce2-94947d4e3f59 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:28:24.717423Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000043446
StatusPUBLIC

Content hashes

Canonical text6f88e942385151a0eb91eb0a04d8a533124ded4559d4b573a8a5912d0a3613d2
Markdownf5c0f0c8bdb1a9949633a2ac67a73706e683a27c3d879752fc2fd1077d9a39ff
PDF
Publication page12ceece976f975a7a58a8e6f2332fe8f5f80dc6d0132bd8b260459d941ce267f
Manifest688b6f97cb44f27703f0ed3fcd7954982d282ca9029315bd01e6e4b0d80dcd48

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
SignatureCQWYn/Ulu54rJWJOLzc8/kLs9KI6vEnFYlP1CYs5ZqISlIvxdU96fq6jNuihGMVg3+4fatU7AGJwVLwF1VuZCA==
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

2026-09-17T11:13:59.785732ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043446
observed 12ceece976f975a7a58a8e6f2332fe8f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:59.768574ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043446/manifest.json
observed 688b6f97cb44f27703f0ed3fcd795498...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:59.749647ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043446/publication.md
observed f5c0f0c8bdb1a9949633a2ac67a73706...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:59.730124ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043446/publication.txt
observed 6f88e942385151a0eb91eb0a04d8a533...
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.