OpenTechnical

OT-2026-000022831

Publication integrity record

Two cup vacuum gripper, two zone face, two outlet manifold, single 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-2026-000022831) never changes.

Identity and time

Publication numberOT-2026-000022831 · never reused
Internal UUID01a0ae70-46ea-7a7f-ac3d-eb0f2c837920 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:16:28.929798Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000022831
StatusPUBLIC

Content hashes

Canonical text0748a09e241f0579e8c373c6d8fa5c530e3fe2ba183e8d5f34e00303aeb8b17e
Markdown4734b2a2dd714aa2825cf61792cc7b4699b24be24c75824ecc6b330e03c4e2db
PDF
Publication page7a569fd5c9ba356276305d1e0ed8e04a99389c7b26bd1d2869904e14f086c1bd
Manifest9f64f0cbf55fa185ea35bb19fe079d0b348435c3f735737888a45bdb34674439

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
Signature4yz16NPGzoWsollY0V78IiI7WiCkulnI55cRQ1FhPIMnkTjdP6qP1QbQ4qMDbnMUAuQNKlHGTbWJDMQ5L3QQBg==
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

2026-09-17T11:52:21.857403ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022831
observed 7a569fd5c9ba356276305d1e0ed8e04a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:21.839816ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022831/manifest.json
observed 9f64f0cbf55fa185ea35bb19fe079d0b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:21.821366ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022831/publication.md
observed 4734b2a2dd714aa2825cf61792cc7b46...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:21.801730ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022831/publication.txt
observed 0748a09e241f0579e8c373c6d8fa5c53...
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.