OpenTechnical

OT-2026-000050849

Publication integrity record

Two cup vacuum gripper, two outlet manifold, common isolation valve, plant vacuum fed, vented 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-2026-000050849) never changes.

Identity and time

Publication numberOT-2026-000050849 · never reused
Internal UUID01a0ae82-c7b2-713f-9973-03d57910e9e9 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:36:41.548889Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000050849
StatusPUBLIC

Content hashes

Canonical textec8ccfe3b48c940b04ba30f204c6f3398bf8cadd7e46bd7fb17c78d474ca4409
Markdownf7660594d61dfcd2e720e369bf14acb7ad50f1443956387cc77f7d471dd2efb4
PDF
Publication page88b1bfad6e31c9c9f633051449aee4a088909b6a851f0033b6db8599ea901bff
Manifest5e266ad10bce23d3787e5ccb6d3e5463522091cfc2fb2949acdfc8786f422f7c

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
SignaturekTpPyvxToOqcqASw1sTfi95lrV+MQwDUmo9akwva+xi9qwD0MtHPdyhfdUsC07pDvZLDRU8kRnzd8ZHTsUe4Cg==
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

2026-09-17T11:00:25.170547ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050849
observed 88b1bfad6e31c9c9f633051449aee4a0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:00:25.153440ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050849/manifest.json
observed 5e266ad10bce23d3787e5ccb6d3e5463...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:00:25.142715ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050849
observed 88b1bfad6e31c9c9f633051449aee4a0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:00:25.132375ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050849/publication.md
observed f7660594d61dfcd2e720e369bf14acb7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:00:25.119481ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050849/manifest.json
observed 5e266ad10bce23d3787e5ccb6d3e5463...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:00:25.112020ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050849/publication.txt
observed ec8ccfe3b48c940b04ba30f204c6f339...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:00:25.100052ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050849/publication.md
observed f7660594d61dfcd2e720e369bf14acb7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:00:25.083584ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050849/publication.txt
observed ec8ccfe3b48c940b04ba30f204c6f339...
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.