OpenTechnical

OT-2026-000087573

Publication integrity record

Four bellows cup vacuum gripper, four zone face, two stage ejector, supply line pressure sensor, sustained 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-2026-000087573) never changes.

Identity and time

Publication numberOT-2026-000087573 · never reused
Internal UUID01a0ae9a-cd52-7648-87b8-1d6a9808c39e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:02:55.852518Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000087573
StatusPUBLIC

Content hashes

Canonical texted36f8d80277485ac7c4a6982a5774751c3f432c674fc69d31d48bbebc6307fb
Markdown1ecf9853349c0fbd97ebb9fd632f8dbac899517dbefa1ebbf2b29a4bf280d5bb
PDF
Publication page89cb85b97c5113b966451c19be8d03b7991e338ad5d07d8692e9469d2661eba5
Manifestf7c18b8f756e5c389534944be62719c7815486d686c8c303de352bab6643301c

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
SignaturejfWfsGG8LwPScaqKsLkaMftIzbh2MRpm+nPHKo/fVu3Bn9vnaz/iCzvMFg63k2xWPl3K/llj+Sj8dqz9iPOCBw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T09:50:55.176403ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087573
observed 89cb85b97c5113b966451c19be8d03b7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:55.160624ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087573/manifest.json
observed f7c18b8f756e5c389534944be62719c7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:55.145210ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087573/publication.md
observed 1ecf9853349c0fbd97ebb9fd632f8dba...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:55.128402ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087573/publication.txt
observed ed36f8d80277485ac7c4a6982a577475...
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.