OpenTechnical

OT-2026-000013725

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, 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-2026-000013725) never changes.

Identity and time

Publication numberOT-2026-000013725 · never reused
Internal UUID01a0ae6d-8de8-7f4c-96ea-b4ae1935d680 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:30.489074Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000013725
StatusPUBLIC

Content hashes

Canonical text59e412ee03f90c62f19c7797ce52d6b2c0a9f16f011d2f8a002ba8fed507adee
Markdowneb3ed1f0c1acdeed659a4e3cd02926770b0d3f63504255dc810a64511c7fdb54
PDF
Publication pageb88d8679756c05e4af4606e1ce4b15210b6126196193b21655c439d4a43123c9
Manifestc19475cf2f10942ab23adc72f36c0558fa4e490a88c0195043d609cb3ab4463d

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
SignaturebFA7/cnZFeAlkleXoUTNGXhXPE4zQ9SAq5vb000xG0CTy/9hxuzqpsyxR28RSm62dKSwY4rwmtNhaKia7HjBCA==
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

2026-09-17T12:08:41.387586ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013725
observed b88d8679756c05e4af4606e1ce4b1521...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:08:41.368469ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013725/manifest.json
observed c19475cf2f10942ab23adc72f36c0558...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:08:41.349853ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013725/publication.md
observed eb3ed1f0c1acdeed659a4e3cd0292677...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:08:41.329593ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013725/publication.txt
observed 59e412ee03f90c62f19c7797ce52d6b2...
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.