OpenTechnical

OT-2026-000080303

Publication integrity record

Three bellows cup vacuum gripper, three zone face, per zone isolation, pump fed, 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-2026-000080303) never changes.

Identity and time

Publication numberOT-2026-000080303 · never reused
Internal UUID01a0ae96-7e77-7f4c-8ef2-1d47938ab663 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:13.512436Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000080303
StatusPUBLIC

Content hashes

Canonical text2ecbea239b566b7a1b4aecd63749cb7988518e1da60c25bf7c6bda4ea846b462
Markdown22419d14df235658e1bd675f342d9b7ea431f39a8f2c088c41b554c425726641
PDF
Publication pagea355e644ce0de90277afaabc6ea40a4463fc60d3129cccacb9d337aa007e2be4
Manifest0369bdc1c6a0bf41d673e8ed9d402b5854eaf37dde48ac1bab81058db956af15

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
SignatureqJnTUZW3uFTmBRxoJp+0sVJ6zgr0GXxxUI9Pxqed0qrvIIQxBE5kyUEGTj5ZV4oeY/w/GETMqp13eUX5bQsWBw==
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

2026-09-17T10:02:46.147015ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080303
observed a355e644ce0de90277afaabc6ea40a44...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:46.129985ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080303/manifest.json
observed 0369bdc1c6a0bf41d673e8ed9d402b58...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:46.112106ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080303/publication.md
observed 22419d14df235658e1bd675f342d9b7e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:46.094524ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080303/publication.txt
observed 2ecbea239b566b7a1b4aecd63749cb79...
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.