OpenTechnical

OT-2026-000075965

Publication integrity record

Three cup vacuum gripper, three zone face, plant vacuum fed, pressure sensor per zone, pulsed blow-off before 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-2026-000075965) never changes.

Identity and time

Publication numberOT-2026-000075965 · never reused
Internal UUID01a0ae94-2a00-72c6-92ee-5d8034a015a5 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:40.814795Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000075965
StatusPUBLIC

Content hashes

Canonical texte6f435c8bb9fe8c46cba4f3578fa2b97934ca453b0e96b482a5f0ee1b19625c4
Markdown07b042de14c853d95f565f6de83afc2f12312b5b31c42a7c30e79ad932762cc0
PDF
Publication page99a8d40ed13dc4044ad73bf3004a4c6050c9d56df39c8b9b9a9647ea14f817e1
Manifesta378d8ffa3dc95c1ac75b3ab2cb09c9c7bd6406e49bdb7770837b1c330235a68

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
SignatureHo7AXTi8Oi6aU2LWS9uadG4Iw6+E8l9t6b+p0PGeAXoxyxkg/xOzAhjicyAMlwxWLvlWIM5VB5dqXSIvrqJvAg==
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

2026-10-31T04:23:09.480360ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075965
observed 99a8d40ed13dc4044ad73bf3004a4c60...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-10-31T04:23:09.464674ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075965/manifest.json
observed a378d8ffa3dc95c1ac75b3ab2cb09c9c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-10-31T04:23:09.445006ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075965/publication.md
observed 07b042de14c853d95f565f6de83afc2f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-10-31T04:23:09.359619ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075965/publication.txt
observed e6f435c8bb9fe8c46cba4f3578fa2b97...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-10-08T08:42:10.298288ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075965
observed 99a8d40ed13dc4044ad73bf3004a4c60...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-08T08:42:10.196557ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075965/manifest.json
observed a378d8ffa3dc95c1ac75b3ab2cb09c9c...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-08T08:42:10.012879ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075965/publication.md
observed 07b042de14c853d95f565f6de83afc2f...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-08T08:42:09.886629ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075965/publication.txt
observed e6f435c8bb9fe8c46cba4f3578fa2b97...
fetched by grabo-systems from 34.44.131.203, 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

OT-CUSTODY-2026-W38OpenTechnical-Custody-2026-W38.tar.zst
f2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent