OpenTechnical

OT-2026-000081553

Publication integrity record

Two bellows cup vacuum gripper, two zone face, three outlet manifold, pump fed, 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-2026-000081553) never changes.

Identity and time

Publication numberOT-2026-000081553 · never reused
Internal UUID01a0ae97-0f71-7b6a-8cce-850a502c9b77 · 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-2026-000081553
StatusPUBLIC

Content hashes

Canonical textff6f5112dae91d22e22c851d240a865e5b4aef741d32335acfa60f0866bb9ec9
Markdownd2ba55f8ed1bbb3c8cf5588ec22dbee2cb4ce22207fa3bee85723fc553d8f641
PDF
Publication page4cf04065aae216228e52cb388a68c96ad92c99239233b479bdba52c2db0c817e
Manifestfd8018b4457cd3a5d3ec49ac5209c4d9a6514d4a769309e94d89c685b7de4e46

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
Signature7BhO/yKnimnGxb/JwB9ahYhAUzIwrL/qCShkyzdmJ9aBqpog5l9o1k/1GJBPruI+xOPihJ1Ukr+sg6a1DdCQAw==
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

2026-09-17T09:59:34.776925ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081553
observed 4cf04065aae216228e52cb388a68c96a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:34.759130ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081553/manifest.json
observed fd8018b4457cd3a5d3ec49ac5209c4d9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:34.741473ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081553/publication.md
observed d2ba55f8ed1bbb3c8cf5588ec22dbee2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:34.725037ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081553/publication.txt
observed ff6f5112dae91d22e22c851d240a865e...
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.