OpenTechnical

OT-2026-000090352

Publication integrity record

Three cup vacuum gripper, three zone face, single 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-2026-000090352) never changes.

Identity and time

Publication numberOT-2026-000090352 · never reused
Internal UUID01a0ae9c-7f2d-7b18-9771-683851c15c8a · 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-2026-000090352
StatusPUBLIC

Content hashes

Canonical text537f7a875bde2a105b7eac1bb90a2ad97906a8fa82afad2d36aee77bd8b2522c
Markdowndadd4ca90b45355e4f3712304602e1d0fca59cc2ee645da27b776ecb56140eaf
PDF
Publication page3b72aaa45f2b39e42c18aa9d6f976ab2961510b4a377adbff1d18afecfa3635b
Manifestbb4f723ef32966cc3a84fb721dbe6ca5ba03db3b9f67b15ddff1ad7aee546c63

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
SignaturePCBn97/+DFogWwHEHnBL4OZW3gd/Iovow3ojtwA4zWTMUdlRDQeyuFPty1pJSBB3zCy+R56BYv9TjaMOWep2Cg==
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

2026-09-17T09:44:26.975234ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090352
observed 3b72aaa45f2b39e42c18aa9d6f976ab2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:26.957607ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090352/manifest.json
observed bb4f723ef32966cc3a84fb721dbe6ca5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:26.937732ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090352/publication.md
observed dadd4ca90b45355e4f3712304602e1d0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:26.919089ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090352/publication.txt
observed 537f7a875bde2a105b7eac1bb90a2ad9...
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.