OpenTechnical

OT-2026-000081660

Publication integrity record

Six bellows cup vacuum gripper, six 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-2026-000081660) never changes.

Identity and time

Publication numberOT-2026-000081660 · never reused
Internal UUID01a0ae97-0f73-77b5-b74c-44fa22f35d5e · 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-2026-000081660
StatusPUBLIC

Content hashes

Canonical textb658b7bb4f5fe31fb4db07e306c080d961f2616ea2efe0c3272987f137bd7b0f
Markdowncbd8d7ef7461820e04adc5c0b0ec13128e8999275101bd3fb98853121ad36371
PDF
Publication pagef5acae4e3c7ef8087eb2113873d58c2194bec8202f2356fa2fd444fa04ea5d7b
Manifestc12c643a73c8dcd2bf4c330da8b9c60345672c6e1dc739a81b09e571292b91e1

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
SignaturecXC/KKIsOz3lcNugbrklWVcNFuwU9uR8ju0I4MVaP/XT5PSvBMG6ZGWDkrN1/zU9W/0cBJIO7eRbpsfuSSA4Cg==
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

2026-09-17T09:59:42.936590ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081660
observed f5acae4e3c7ef8087eb2113873d58c21...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:42.918712ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081660/manifest.json
observed c12c643a73c8dcd2bf4c330da8b9c603...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:42.899868ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081660/publication.md
observed cbd8d7ef7461820e04adc5c0b0ec1312...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:42.882264ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081660/publication.txt
observed b658b7bb4f5fe31fb4db07e306c080d9...
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.