OpenTechnical

OT-2026-000081524

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, two stage ejector, 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-2026-000081524) never changes.

Identity and time

Publication numberOT-2026-000081524 · never reused
Internal UUID01a0ae97-0f71-7a09-85bb-cb4b12273c71 · 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-2026-000081524
StatusPUBLIC

Content hashes

Canonical textb1bd93d2e353a172e7f8d1e323d3c15abdc97e1d9bce5764e44bc348c35d266c
Markdownd344b88c2665538009bb19dbb3162e746d319e7293be29bc229a93e20ceee19f
PDF
Publication page4d0f39f34320978fcc63af6d9da99e0f7ba874ae3503412914a596871ab258d4
Manifestf2bd950a76f8565530706d59b2b134a87570c6aea2123adcbf6feb30ccde7e9f

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
SignatureAjDxvIeT2G8AxCgzOZOMHhSjCLjZuLooagmf/G8bX7kuyWh64NQ59lyDIfVfQ4eJ1ypguWQN3pWg/q2pf7XxAw==
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

2026-09-17T09:59:32.601385ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081524
observed 4d0f39f34320978fcc63af6d9da99e0f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:32.583365ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081524/manifest.json
observed f2bd950a76f8565530706d59b2b134a8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:32.566487ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081524/publication.md
observed d344b88c2665538009bb19dbb3162e74...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:32.548308ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081524/publication.txt
observed b1bd93d2e353a172e7f8d1e323d3c15a...
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.