OpenTechnical

OT-2026-000005997

Publication integrity record

Bellows cup vacuum gripper, two zone face, plant vacuum fed, contact triggered on the face

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-2026-000005997) never changes.

Identity and time

Publication numberOT-2026-000005997 · never reused
Internal UUID01a0a94b-c093-7788-bd22-851376c029bf · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:18:29.142493Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000005997
StatusPUBLIC

Content hashes

Canonical text5f079ce2598948b6908ae8f1405c4a96c77d780930dfcb92d10e8c8907ffa275
Markdown7725c7f242be326e71bb36658dd71f34d6f8f5b1d4623aef89497a09472e1ce3
PDF
Publication page939c933411258e3596bcf4227d23aa692a5580ca6e3625020a7093333dbafc40
Manifest58a1e7bfd63f17feaadad5c41076a1a0468e99783e24b9a90205902cc54574ae

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
Signaturez6cC6df/E2+ma+xs05dWwPFXSKsf8M7oaWC+/ZZmZuz0Mv2HnwPw7cC1v/icCDiphZUyMr+73erEwbwTfsUjCw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:27:03Z
batch OT-TS-2026-W38-012 · RFC 3161 token · inclusion proof
root dbe93cb6b2158496df2f60f3b6822537...

Independent retrieval

2026-09-16T08:20:07.744394ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005997
observed 939c933411258e3596bcf4227d23aa69...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:07.723673ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005997/manifest.json
observed 58a1e7bfd63f17feaadad5c41076a1a0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:07.706796ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005997/publication.md
observed 7725c7f242be326e71bb36658dd71f34...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:07.688872ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005997/publication.txt
observed 5f079ce2598948b6908ae8f1405c4a96...
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.