OpenTechnical

OT-2026-000043452

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, plant vacuum fed, pulsed 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-2026-000043452) never changes.

Identity and time

Publication numberOT-2026-000043452 · never reused
Internal UUID01a0ae7b-92ce-7fe8-b6fa-f05bf7637658 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:28:49.254972Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000043452
StatusPUBLIC

Content hashes

Canonical text8b1dc94dd81fa0e2d8932de770e993d135fad1710c52d0c0b5baca8283c1e490
Markdown6a5605190a69a94b8f4ff8203b4fd7cb46cc7917db1de8765ef80607a2259111
PDF
Publication page8a99d7b879db4fe65cb5d53a94ba1bec024b603bf934a0fc12c1e3d4d11185c9
Manifest0272ea8ab2cd5301a479f633c41a9b371d3b51d9bd876965f848027e8f4d10e3

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
SignatureRg2PtjaCDWgHj/caDYz3TjI7nj1OYa/C9rC8HU7b21AAC3TUVlWQKqhjdyZFYRYuk6w1JSy/DjuL6cAU7oJSAQ==
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

2026-09-17T11:12:47.922231ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043452
observed 8a99d7b879db4fe65cb5d53a94ba1bec...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:12:47.879877ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043452/manifest.json
observed 0272ea8ab2cd5301a479f633c41a9b37...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:12:47.860930ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043452/publication.md
observed 6a5605190a69a94b8f4ff8203b4fd7cb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:12:47.818547ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043452/publication.txt
observed 8b1dc94dd81fa0e2d8932de770e993d1...
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.