OpenTechnical

OT-2026-000028116

Publication integrity record

Six bellows cup vacuum gripper, six outlet manifold, common isolation valve, two stage ejector, 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-2026-000028116) never changes.

Identity and time

Publication numberOT-2026-000028116 · never reused
Internal UUID01a0ae72-a520-74d6-8477-2fa54b69763c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:04.113553Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028116
StatusPUBLIC

Content hashes

Canonical text4a562d860b2de6593a28a54a21bc12049768df6e66326adcae4478dce44a90db
Markdownbff7abdad5986fb9d4657eed1f2f3d1d770614b8b54680b2a347553ab56ac5de
PDF
Publication page62931a133a3f3d370db401b8e4dfcea058d2eb4011244541ddf0494b9a3a96e9
Manifest908dafc053ca483e8229fceb1e37c8063e0496b1eccf9d76d62aec182de77f5a

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
SignatureiI1xF8vkB2Zor/noPxm8JxvXlseIh4tISnAXVxWU7ywDV9T7ziHLfR0uGl+zGkq5fBB3ZRQumzVw3liwpQqPCA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:42:27.987577ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028116
observed 62931a133a3f3d370db401b8e4dfcea0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:27.968707ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028116/manifest.json
observed 908dafc053ca483e8229fceb1e37c806...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:27.949888ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028116/publication.md
observed bff7abdad5986fb9d4657eed1f2f3d1d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:27.932005ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028116/publication.txt
observed 4a562d860b2de6593a28a54a21bc1204...
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.