OpenTechnical

OT-2026-000090632

Publication integrity record

Two bellows cup vacuum gripper, two zone face, per zone isolation, pump fed, pressure sensor per zone, sustained 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-2026-000090632) never changes.

Identity and time

Publication numberOT-2026-000090632 · never reused
Internal UUID01a0ae9c-7f30-7ce9-9f45-b9dbb674d652 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:46.997728Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090632
StatusPUBLIC

Content hashes

Canonical textb6abbc5e99a33dce1ccac5236e9a8766f26026b12184775947ed293163dc0a52
Markdown824b37724fa65dce601ddceecacf249d6db642d87660528a086a10cc9ccf1917
PDF
Publication page4079ffd24c811144df1bc77bcf70295043c8e1d6dc9d4503805542081ac526ca
Manifest11e3643f136869fba77781519caf7d04623f8e7d10d895700142a615042ec05d

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
Signaturew2aD0oDv7022lq8dXQJvWS4IeAC8v7Emj6bUotmEwwETOSHuQ6uDOsKJlCjDKdTVK6orOzwX1aaqtBgZ8iYHDg==
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

2026-09-17T09:44:48.999789ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090632
observed 4079ffd24c811144df1bc77bcf702950...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:48.981998ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090632/manifest.json
observed 11e3643f136869fba77781519caf7d04...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:48.963657ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090632/publication.md
observed 824b37724fa65dce601ddceecacf249d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:48.942675ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090632/publication.txt
observed b6abbc5e99a33dce1ccac5236e9a8766...
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.