OpenTechnical

OT-2026-000031657

Publication integrity record

Six cup vacuum gripper, six outlet manifold, common isolation valve, single stage ejector, pulsed blow-off after 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-2026-000031657) never changes.

Identity and time

Publication numberOT-2026-000031657 · never reused
Internal UUID01a0ae74-bad0-7054-8dfd-3812b864d0c0 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:20.739935Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000031657
StatusPUBLIC

Content hashes

Canonical textfe1174b09990b104b4560ca6c9ba2cbed06958da955d99f337590b174d975c29
Markdown8197810682292f0f0c62c5e5ee8d291601fb008eec0cc34b163626ec8efb7df5
PDF
Publication pagef8dfbe0646a3b3727ce7101e4bb8b326e91b3778487184d8a0d859f651c45c6d
Manifestad2bb3177e59a98b9b186580bfe539dff51821feed961faad207393bcf3fb215

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
Signaturehp79S2JpdUPyjFTDzcwQpD4Vpm17b3Uqu8ePJ27LglqhbuPW/KDHhLhUWrYA1ZCE4AjGYGoCxL4+qJ6T4y4LCA==
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

2026-09-17T11:34:42.937155ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031657
observed f8dfbe0646a3b3727ce7101e4bb8b326...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:34:42.919649ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031657/manifest.json
observed ad2bb3177e59a98b9b186580bfe539df...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:34:42.900486ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031657/publication.md
observed 8197810682292f0f0c62c5e5ee8d2916...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:34:42.884280ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031657/publication.txt
observed fe1174b09990b104b4560ca6c9ba2cbe...
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.