OpenTechnical

OT-2026-000081834

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, common isolation valve, pump fed, supply line pressure sensor, vented after 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-2026-000081834) never changes.

Identity and time

Publication numberOT-2026-000081834 · never reused
Internal UUID01a0ae97-0f75-789f-b627-b5a3811a5cb1 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:50.648824Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081834
StatusPUBLIC

Content hashes

Canonical textf506b680855df30ff3606d3b5f337bfa1578cb160125a09a605eb834551d5882
Markdown15c28d1e802081ccdab40da66c7d247cf77cfd5f189794fec89244a9e4596507
PDF
Publication paged1ace7fc99556e8a2b51aad3fc45ef65d9158d758daa6b7d27aff055ace88a32
Manifest76f3303e5a54b4bcf5028702563b453222e329cae0045bd6279dff333b343306

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
SignatureuVtgyqTdIz4FPMa5K5O9mdpY1sofDY/8P3FxvIXXYhfe6ShHSCOpO3qCyS7Q3YD2DAVfJJtZ3ow/FpGx7bhvDg==
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

2026-09-17T09:59:56.729151ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081834
observed d1ace7fc99556e8a2b51aad3fc45ef65...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:56.712448ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081834/manifest.json
observed 76f3303e5a54b4bcf5028702563b4532...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:56.694736ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081834/publication.md
observed 15c28d1e802081ccdab40da66c7d247c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:56.678487ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081834/publication.txt
observed f506b680855df30ff3606d3b5f337bfa...
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.