OpenTechnical

OT-2026-000091237

Publication integrity record

Two bellows cup vacuum gripper, two zone face, two outlet manifold, 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-2026-000091237) never changes.

Identity and time

Publication numberOT-2026-000091237 · never reused
Internal UUID01a0ae9c-f16c-70ff-9fa5-ed7063e54029 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:16.158740Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091237
StatusPUBLIC

Content hashes

Canonical text9385362a25526eb204c04362ef528ffca82637aeed00898b7e3ac1a4be513c91
Markdown6d85d7dee8645d5f43145589321fa4f2cb02a635862de32c0998929532f89fbe
PDF
Publication page01862ddef9032a3779eb5c77514424a7cb62ebe337fefaa035708e342acb8702
Manifest3718422040516e8a398c51f97d065130dc8863ded02e3c4274108c974c4d2781

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
SignaturewD56G+mlJCUDHxDhrk30PS1ITJ6oH+dSDKFeLRtd5rga7yR88W+HJytoAVQEXddkSbFozeoSDPV7MyjRdpeWAA==
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

2026-09-17T09:43:24.657962ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091237
observed 01862ddef9032a3779eb5c77514424a7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:24.640761ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091237/manifest.json
observed 3718422040516e8a398c51f97d065130...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:24.624276ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091237/publication.md
observed 6d85d7dee8645d5f43145589321fa4f2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:24.607451ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091237/publication.txt
observed 9385362a25526eb204c04362ef528ffc...
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.