OpenTechnical

OT-2026-000031475

Publication integrity record

Two cup vacuum gripper, two zone face, four outlet manifold, three stage ejector, 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-2026-000031475) never changes.

Identity and time

Publication numberOT-2026-000031475 · never reused
Internal UUID01a0ae74-87ae-76ec-8cc3-27a912b99ec5 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:07.653052Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000031475
StatusPUBLIC

Content hashes

Canonical text65e9d08d07ae3fc2be10bfac85b6e2f378b45a91d25565802de5761f899324ce
Markdowndbf4a8949aa7e7f783b390be3f1c3b20faef60cdd47d7b6a87d41d1c43696992
PDF
Publication page54271501b08d42a073d730995dc5c822bfbe3f077b1c1a54409320caa145144a
Manifest15929c0981fbd18b6dd410edbe368627f6dcdb181401ddf14facc7299623c3da

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
SignaturetI+7s+FmffwQbrwSGlmUgmvQHKyR5J/ZPZukHGyod0RptUxKZc1Hdl4pXfm30eQapT1MwrPZh4EBX7tnwLHvDw==
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

2026-09-17T11:36:12.497947ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031475
observed 54271501b08d42a073d730995dc5c822...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:12.479540ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031475/manifest.json
observed 15929c0981fbd18b6dd410edbe368627...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:12.460573ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031475/publication.md
observed dbf4a8949aa7e7f783b390be3f1c3b20...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:12.439527ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031475/publication.txt
observed 65e9d08d07ae3fc2be10bfac85b6e2f3...
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.