OpenTechnical

OT-2026-000090708

Publication integrity record

Three cup vacuum gripper, three zone face, per zone isolation, three stage ejector, 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-2026-000090708) never changes.

Identity and time

Publication numberOT-2026-000090708 · never reused
Internal UUID01a0ae9c-7f31-7c82-8cca-668bf6e95454 · 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-2026-000090708
StatusPUBLIC

Content hashes

Canonical text509ecfe5f77b3ca92f9d8063787662e51e562985e6926e4a5fe68267c3e48135
Markdown069f097ca65553c5a9b938effcab919ddabda095d3afb69ee5f50127aa286de2
PDF
Publication page4c0af22ff261a3d1d6efbd7086c9e4c02998138071ec9418581c62172eac8a15
Manifest26b75c624c3a1c6411c1cb05bd3e9fb037343c9d2fe7525dec471aa8a15cb72c

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
SignatureII+2mdBnWg7jO0pfoD2bWuEzGyqXzRXh0vBTvVMQfDBq3L+6q9ycCg7kjJpoDmv5BBZcyOL95dsAQpWIZRV2Cw==
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

2026-09-17T09:44:54.757171ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090708
observed 4c0af22ff261a3d1d6efbd7086c9e4c0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:54.740130ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090708/manifest.json
observed 26b75c624c3a1c6411c1cb05bd3e9fb0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:54.722740ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090708/publication.md
observed 069f097ca65553c5a9b938effcab919d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:54.705269ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090708/publication.txt
observed 509ecfe5f77b3ca92f9d8063787662e5...
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.