OpenTechnical

OT-2026-000090751

Publication integrity record

Three cup vacuum gripper, three zone face, per zone isolation, pump 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-2026-000090751) never changes.

Identity and time

Publication numberOT-2026-000090751 · never reused
Internal UUID01a0ae9c-7f31-75f2-a440-deb7af87840c · 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-2026-000090751
StatusPUBLIC

Content hashes

Canonical text0be88e704ba293d5ca62728bfff031ec20736ff9cf84bed01b0938cbcdbb9564
Markdown5ee9ab1df08641401b41dca04c0171ce1f2190d685ffaaf6ff020f87fde7d44c
PDF
Publication pagef4a0bc8e47398c4e24f46888e65414271c9948bc74b0af8c52c7bc70d16627c8
Manifest2aabb486480d879293723fe401300a5b9105d3c9032eb9ff1dbef823bf35f43f

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
SignaturexHtBu6pLbNlAIaWOauKcBTbdyQag9HeWXHO0FO2zb9RM8tTb8wbSTH03XOoBpXDQt/d1PAN7Qtk218nDYx3uDQ==
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

2026-09-17T09:44:23.602620ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090751
observed f4a0bc8e47398c4e24f46888e6541427...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:23.583407ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090751/manifest.json
observed 2aabb486480d879293723fe401300a5b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:23.554519ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090751/publication.md
observed 5ee9ab1df08641401b41dca04c0171ce...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:23.526622ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090751/publication.txt
observed 0be88e704ba293d5ca62728bfff031ec...
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.