OpenTechnical

OT-2026-000090731

Publication integrity record

Three cup vacuum gripper, three zone face, per zone isolation, plant vacuum fed, pressure sensor per zone, sustained blow-off before set-down

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-2026-000090731) never changes.

Identity and time

Publication numberOT-2026-000090731 · never reused
Internal UUID01a0ae9c-7f31-7032-92fc-ee2c95ffc14f · 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-2026-000090731
StatusPUBLIC

Content hashes

Canonical texte85f3fef1131d9ba214fecbe78c74fede4592f832d0a24707b55b06cc93710d7
Markdown88d10bbcb60ee0507af36d0361592c9052a3ee5c249764a0ae9914c530f8a27f
PDF
Publication page2159e181f4f8328cdea53171bc5ca115df0b0b1205fcc6595db1ce140431d1f1
Manifesta7743f5beded314680d0c07c503ddd8cc814fded63529d3a0ed13761a4157d20

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
Signature0xgsB0F19E5g8cGLBHNBtfDo3iO5571YVfZ0ytw/2l++vtklpU99AsZg4sPQE4nW98cekSQXABU7OERU7B16Dg==
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

2026-09-17T09:44:23.363507ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090731
observed 2159e181f4f8328cdea53171bc5ca115...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:23.346494ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090731/manifest.json
observed a7743f5beded314680d0c07c503ddd8c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:23.329183ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090731/publication.md
observed 88d10bbcb60ee0507af36d0361592c90...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:23.312494ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090731/publication.txt
observed e85f3fef1131d9ba214fecbe78c74fed...
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.