OpenTechnical

OT-2026-000017831

Publication integrity record

Four cup vacuum gripper, four zone face, four outlet manifold, pump fed, 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-2026-000017831) never changes.

Identity and time

Publication numberOT-2026-000017831 · never reused
Internal UUID01a0ae6e-96fb-74e6-9b5f-ebfbb75dd871 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:14:38.350302Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000017831
StatusPUBLIC

Content hashes

Canonical textfb353bca3a330335133efd45d3548f9584d9a892b5500cb39b94dbd529f4fbe6
Markdown83a6629926f8e4d9b3070debd43e37bc5f75aedbb9ccd160b33518c1b73f459c
PDF
Publication page434ba28813deee419d946398088932ef9423001e7dcbb2f5a1b18f0e2d032094
Manifest85d8318571941adf5fb6150ce31f66c7efc914487aeccd49dac5e71482b05b06

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
SignatureZdcpPwSQ9HSPCKSAzS/x7crZuooGsvp8YVze5Oztitfhihl0ZRH8ZaDRO2FsJYOIieLpFUq3upwn3juxMJ/NDg==
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

2026-09-17T12:01:48.409611ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017831
observed 434ba28813deee419d946398088932ef...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:01:48.392771ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017831/manifest.json
observed 85d8318571941adf5fb6150ce31f66c7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:01:48.372610ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017831/publication.md
observed 83a6629926f8e4d9b3070debd43e37bc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:01:48.355575ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017831/publication.txt
observed fb353bca3a330335133efd45d3548f95...
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.