OpenTechnical

OT-2026-000074199

Publication integrity record

Three bellows cup vacuum gripper, three zone face, three outlet manifold, two stage ejector, manifold pressure sensor, pulsed 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-2026-000074199) never changes.

Identity and time

Publication numberOT-2026-000074199 · never reused
Internal UUID01a0ae93-7178-7e55-82ea-54c4d1da5c86 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:53.574555Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000074199
StatusPUBLIC

Content hashes

Canonical textdc5a0d1991ebdda843f99159bb1548000c6a8dbc2ea656e03b8ca107f0314c37
Markdowne1e095cb58f535296d807b15591f66a0091f4a506fc1c17aa165574632785a00
PDF
Publication page40a542c3e8324c0b6d0d3901b25faf05d7d0b131dea825c01c855fdfa464ec79
Manifest85d305f6560c97d1f9c08c3e2d0e2996d65f00dbf8635b8497de4959cef9372d

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
Signature3LwOX+aKJZDiDRdqA6xwLbguDKbSzpgy+HOkCngAtJLwk7XAZo5YhieehAAS1W8eGUbwNlbRl5yjgB9zjxmBAg==
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

2026-09-17T10:19:03.312865ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074199
observed 40a542c3e8324c0b6d0d3901b25faf05...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:03.295688ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074199/manifest.json
observed 85d305f6560c97d1f9c08c3e2d0e2996...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:03.276463ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074199/publication.md
observed e1e095cb58f535296d807b15591f66a0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:03.258202ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074199/publication.txt
observed dc5a0d1991ebdda843f99159bb154800...
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.