OpenTechnical

OT-2026-000087975

Publication integrity record

Three bellows cup vacuum gripper, three zone face, per zone isolation, two stage ejector, supply line pressure sensor, 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-2026-000087975) never changes.

Identity and time

Publication numberOT-2026-000087975 · never reused
Internal UUID01a0ae9b-1aa6-713c-af9c-0387afc9d6df · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:03:15.638297Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000087975
StatusPUBLIC

Content hashes

Canonical text7103744a0855d9f91a587b9e128c9756e8f839044667337bd139a49201da08d8
Markdown32f7069bd598fa98ca82fe7ba10ef3d88c585776800d8b8e665ecb656a9d10f2
PDF
Publication page5103a26949481bf53dd6290e318ae2f7671e5b4a878c27208551990039a94dbd
Manifest788e5d0146068f2d823f4246d2713cad7b6ccf610ecd6de2a52b43c0154a06b3

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
SignatureNZUt+CUJHEHXzRcG1KZuwb46GUmQFZR0JM/NObhG0imEotksEeefkWd5fX4yeID9OBDxqJAGm4GJaZpdz0WuDA==
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

2026-09-17T09:49:16.299571ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087975
observed 5103a26949481bf53dd6290e318ae2f7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:16.280556ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087975/manifest.json
observed 788e5d0146068f2d823f4246d2713cad...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:16.261218ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087975/publication.md
observed 32f7069bd598fa98ca82fe7ba10ef3d8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:16.241318ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087975/publication.txt
observed 7103744a0855d9f91a587b9e128c9756...
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.