OpenTechnical

OT-2026-000081576

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, pump fed, supply line pressure sensor, vented after 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-2026-000081576) never changes.

Identity and time

Publication numberOT-2026-000081576 · never reused
Internal UUID01a0ae97-0f71-7041-8a41-539f03da2aea · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:50.648824Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081576
StatusPUBLIC

Content hashes

Canonical text5c7e746b925356cb444e1f58212b3f26ca307c6aef66fe2635b90fabba7302da
Markdown04798fa4ad04bf68ebfc088d4d4ba7620fe240021d3311ce8117dc95858ce769
PDF
Publication page567d3ee2836df8cd944d6338134e74f9051deef25b5fe87f916fdda7f496975f
Manifestd256f4bdfa9a819aaea159dfcb95e2a53f3741af1afa260d93304682286e31cd

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
SignatureyxiqzylU96wE5fm/pUo1oMUmQgIlaN5m33ardSWfGsLZNjm6CxDRK7WTDICX6hzsOUSsVn0aldy4MWFKU5oVBg==
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

2026-09-17T09:59:36.463352ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081576
observed 567d3ee2836df8cd944d6338134e74f9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:36.444201ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081576/manifest.json
observed d256f4bdfa9a819aaea159dfcb95e2a5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:36.426643ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081576/publication.md
observed 04798fa4ad04bf68ebfc088d4d4ba762...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:36.408697ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081576/publication.txt
observed 5c7e746b925356cb444e1f58212b3f26...
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.