OpenTechnical

OT-2026-000077005

Publication integrity record

Two cup vacuum gripper, two zone face, common isolation valve, plant vacuum fed, pressure sensor per zone, pulsed blow-off 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-2026-000077005) never changes.

Identity and time

Publication numberOT-2026-000077005 · never reused
Internal UUID01a0ae94-b071-793a-899d-bc35dd0631b8 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:15.236414Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000077005
StatusPUBLIC

Content hashes

Canonical textb6e684d7fe86f7e358bb40dbf7e77d1b45a22a28c9e44ea277f0cecdfbfedba7
Markdown19a97911bfdbbe03fa1c82d4b770d33a717fc3739e95e6a2d92cb10097b56065
PDF
Publication page99119bc8ea7d0ff91372ba7e744ddc828ab7ad36d2caa1c19fe11fd46849a352
Manifest79798b83924c4a8f8b68a533b6308c6662e1ed1992067c58913a9ce7b6214616

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
SignatureXERMAB9Vz/ytfviu3uSj4iF/0+iptdvZ3w3ixJ2Z+SKIfhpcY81a0OBzY4ZyrV3GgHTP+mnlCNTBonyJwNVTAw==
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

2026-09-17T10:10:21.562654ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077005
observed 99119bc8ea7d0ff91372ba7e744ddc82...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:10:21.539863ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077005/manifest.json
observed 79798b83924c4a8f8b68a533b6308c66...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:10:21.522012ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077005/publication.md
observed 19a97911bfdbbe03fa1c82d4b770d33a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:10:21.503979ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077005/publication.txt
observed b6e684d7fe86f7e358bb40dbf7e77d1b...
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.