OpenTechnical

OT-2026-000100219

Publication integrity record

Four bellows cup vacuum gripper, four zone face, per zone isolation, plant vacuum fed, pressure sensor per zone, sustained 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-2026-000100219) never changes.

Identity and time

Publication numberOT-2026-000100219 · never reused
Internal UUID01a0aea3-3053-7a55-9559-4eb60fe3738f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:12:05.469356Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000100219
StatusPUBLIC

Content hashes

Canonical text7f868701bcb06fbbcf597ab9dde50baa79d7e072152d3ad154169f5003473f23
Markdown35b62a4b146630e58e4333927cccc4b176f52d67299fe898d8c70a54469d43ea
PDF
Publication page8c988b4b3ee3e38c666b33605f2b22db5854a7e3d847e3827cd7f7fdde445c98
Manifestfb66438a06ef65479c028671f3d8e1633770feadc469ec78507e572d7ca7687b

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
Signature+rl+PkJQIlY9Xus62TEPCOxW4HB3a3Zj27Ss+LqgJwyQTrhsYQckakSwrx2zhM7U4LsmSXMpgFOw/SFemhajBA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:27:04Z
batch OT-TS-2026-W38-023 · RFC 3161 token · inclusion proof
root 095d30148a2ef87d42d7818ebe7543f9...

Independent retrieval

2026-09-17T09:27:54.108161ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100219
observed 8c988b4b3ee3e38c666b33605f2b22db...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:27:54.081552ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100219/manifest.json
observed fb66438a06ef65479c028671f3d8e163...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:27:54.064812ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100219/publication.md
observed 35b62a4b146630e58e4333927cccc4b1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:27:54.036720ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100219/publication.txt
observed 7f868701bcb06fbbcf597ab9dde50baa...
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.