OpenTechnical

OT-2026-000071622

Publication integrity record

Single bellows cup vacuum gripper, 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-2026-000071622) never changes.

Identity and time

Publication numberOT-2026-000071622 · never reused
Internal UUID01a0ae92-1e90-74d9-a614-469baef5265f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:26.841552Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000071622
StatusPUBLIC

Content hashes

Canonical text3e2724c515de26d3b27942235e1794d6c3fdce8019db8a25c48ee4e353dc1f04
Markdown2172d451323724bbb0859079ef8c80bdb027941d8ca70476420907344d66272f
PDF
Publication page1f1b2c438a704123e80c80004f11e8db443eedb21cead504398e0519f6887f91
Manifest3e0544b5bb98666c25a691003e5120d58efebae9a59b68757070b32cb96e7ce2

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
Signatureqh1G8tIx8CGRdeZuEVLYcJxP4O+prD0TcO8RM8vDI+Pbl7Lw7P1qJJGMrMrxBeIaaIJ02PTqZaeicapFDToHBw==
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

2026-09-17T10:23:39.375807ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071622
observed 1f1b2c438a704123e80c80004f11e8db...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:39.360009ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071622/manifest.json
observed 3e0544b5bb98666c25a691003e5120d5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:39.342283ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071622/publication.md
observed 2172d451323724bbb0859079ef8c80bd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:39.325916ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071622/publication.txt
observed 3e2724c515de26d3b27942235e1794d6...
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.