OpenTechnical

OT-2026-000087988

Publication integrity record

Three cup vacuum gripper, three zone face, per zone isolation, two stage ejector, supply line pressure sensor, 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-2026-000087988) never changes.

Identity and time

Publication numberOT-2026-000087988 · never reused
Internal UUID01a0ae9b-1aa6-7335-a333-b0be1dff6f83 · 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-2026-000087988
StatusPUBLIC

Content hashes

Canonical textc7e55197aaae6bd2efa80e79e4d6ac7906ff5ec5714e2c32334b69892a33921f
Markdown855c5d312d3185860763f3c1fe647a1c9a667f7a96e1fa1281dadc7cde7dafe0
PDF
Publication page3b1e1b44756226ed8fb0c3806d88fcdc6b69390c521b72428eb22f09ce6a7cc7
Manifestb533c2ef2539227e10da134f83f32ff0ed1cfa71fc21873de015607a1d6b553c

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
SignatureM+scUuVWOZvKSutTUlU20U4hktptzWHHvdxZGzCNSiGCSNuKkEy5+uKtXbCQ6PxkbD9bvkCYf72HlX1xtPS3DA==
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

2026-09-17T09:49:17.463276ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087988
observed 3b1e1b44756226ed8fb0c3806d88fcdc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:17.444480ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087988/manifest.json
observed b533c2ef2539227e10da134f83f32ff0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:17.423304ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087988/publication.md
observed 855c5d312d3185860763f3c1fe647a1c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:17.403675ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087988/publication.txt
observed c7e55197aaae6bd2efa80e79e4d6ac79...
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.