OpenTechnical

OT-2026-000072750

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, plant vacuum fed, supply line pressure sensor, vented 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-2026-000072750) never changes.

Identity and time

Publication numberOT-2026-000072750 · never reused
Internal UUID01a0ae92-89da-7930-b79c-571ff6818528 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:54.283203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000072750
StatusPUBLIC

Content hashes

Canonical textd85a192cfa779d50ec3c30c96e0c9c77616517814d0fb71b0ee67dfda8d79d64
Markdownaa2c899e17baabc5b4e088bbe60fe574c4fe8f1f3d83c7fb55facd85fbd30a29
PDF
Publication page249eaecdeeb14bab29ce8ac79f359b04c1224a1424e12333e1ddd77e3ca75149
Manifestbebca307363d31cd606d6e96830dcba33086f0dfb036718c724fc23db54d1cd9

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
SignaturedY3BYtfdMK0hOMBdMfR8J51c809t68oosU9xiySnLFjCtx9+++hrHZTOJiroT5wnvwyy3Kr6huNt3WEn+gfZCw==
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

2026-09-17T10:22:39.410780ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072750
observed 249eaecdeeb14bab29ce8ac79f359b04...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:39.393208ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072750/manifest.json
observed bebca307363d31cd606d6e96830dcba3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:39.374642ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072750/publication.md
observed aa2c899e17baabc5b4e088bbe60fe574...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:39.357473ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072750/publication.txt
observed d85a192cfa779d50ec3c30c96e0c9c77...
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.