OpenTechnical

OT-2026-000068754

Publication integrity record

Four pad foam vacuum gripper, four outlet manifold, pump fed, manifold pressure sensor, 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-2026-000068754) never changes.

Identity and time

Publication numberOT-2026-000068754 · never reused
Internal UUID01a0ae90-6dcb-7e98-b39d-aa525d5aca06 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:51:36.025578Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000068754
StatusPUBLIC

Content hashes

Canonical textfe9129ae52055020fa740f8c193faf37cfe543d8b149c542f3cb04a094fbc5ea
Markdownefa1d5f7d38fbc2abb0fbf6ce3759b95cf960f79993c6e0c9ab9655d6aef6664
PDF
Publication page10df7021279bcaaee79b206ec437f5e4c4987ba4e75220930e143e8002dc5ec0
Manifest3d2ca10c187a2c04815cf6fb37bc8bbbb04e352d9305e24dd8907571218f9a32

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
Signature8TYLoHnxUh4p2sVZHEw0JWlxOXgfeYpkq0LjItG+mLbKy7Xrle8TIT4/kcI9c+MPB4xSC7OOpjmC0t/O5WULAw==
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

2026-09-17T10:28:32.158341ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000068754
observed 10df7021279bcaaee79b206ec437f5e4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:28:32.140740ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000068754/manifest.json
observed 3d2ca10c187a2c04815cf6fb37bc8bbb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:28:32.123505ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000068754/publication.md
observed efa1d5f7d38fbc2abb0fbf6ce3759b95...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:28:32.105826ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000068754/publication.txt
observed fe9129ae52055020fa740f8c193faf37...
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.