OpenTechnical

OT-2026-000077140

Publication integrity record

Single bellows cup vacuum gripper, plant vacuum fed, vented 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-2026-000077140) never changes.

Identity and time

Publication numberOT-2026-000077140 · never reused
Internal UUID01a0ae94-f507-7662-ab68-31bd07b1d98a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:32.796581Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000077140
StatusPUBLIC

Content hashes

Canonical text68280561bd5b42cc0e10395138b4350a91f996242d2a6c8767a11c526ed2fece
Markdown07033983a92fa8a1c7a3d68fd783630bff552ee78068768a77b13bd6687b1f90
PDF
Publication paged916d0a95554ddb861e208aa04ad88614c0fe4915ac1d5036424e8ef786000fb
Manifestcd1a2231f2b49ef8cfaccc768c204455d92620403510b62d63bb2472b758be77

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
SignatureCdbyu1vMIQYC2IbbHOgGEydvqwjI3phJgy5I7xBIMglNAV4+EZYWkNvZRkbIl9s9GroCErCTGULCXo5vWfFkAA==
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

2026-09-17T10:11:45.020659ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077140
observed d916d0a95554ddb861e208aa04ad8861...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:11:44.993000ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077140/manifest.json
observed cd1a2231f2b49ef8cfaccc768c204455...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:11:44.973859ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077140/publication.md
observed 07033983a92fa8a1c7a3d68fd783630b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:11:44.296790ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077140/publication.txt
observed 68280561bd5b42cc0e10395138b4350a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:37.045312ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077140
observed d916d0a95554ddb861e208aa04ad8861...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:37.026557ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077140/manifest.json
observed cd1a2231f2b49ef8cfaccc768c204455...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:37.006889ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077140/publication.md
observed 07033983a92fa8a1c7a3d68fd783630b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:36.988459ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077140/publication.txt
observed 68280561bd5b42cc0e10395138b4350a...
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.