OpenTechnical

OT-2026-000072194

Publication integrity record

Single bellows cup vacuum gripper, plant vacuum fed, supply line pressure sensor, vented before set-down

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-2026-000072194) never changes.

Identity and time

Publication numberOT-2026-000072194 · never reused
Internal UUID01a0ae92-47c2-7005-9eba-222745390540 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:37.365346Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000072194
StatusPUBLIC

Content hashes

Canonical textf9d688854a055e0541c125c61211470292007d74b1e22e7fb2894da0c3861cdb
Markdown8423c64124c15b0b648e1ab678b66afb86fc2ec64d6fbc5ab02cb25f4f4e8e92
PDF
Publication page3bc4af4f90ad1c1646e69188c40642e30b576ab46f800b4feb5cbdb357998a8f
Manifest72e70af280252a6ebe943636a7997c877883d22a3f88bd949188e0221b2738be

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
Signature0dxS6oucJh8Tikxt1t+WwuhErz5WDuAioRMc1DysBUe0u3lb6jwSU5mYY6MFhcL8osKL1624UPcyWTEzGDplCw==
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

2026-09-17T10:23:17.706495ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072194
observed 3bc4af4f90ad1c1646e69188c40642e3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:17.690378ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072194/manifest.json
observed 72e70af280252a6ebe943636a7997c87...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:17.672929ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072194/publication.md
observed 8423c64124c15b0b648e1ab678b66afb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:17.656059ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072194/publication.txt
observed f9d688854a055e0541c125c612114702...
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.