OpenTechnical

OT-2026-000004659

Publication integrity record

Bellows cup vacuum gripper, two zone face, two outlet manifold, two stage ejector

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-2026-000004659) never changes.

Identity and time

Publication numberOT-2026-000004659 · never reused
Internal UUID01a0a91f-268c-7899-b253-c35566711fd2 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:29:46.127438Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000004659
StatusPUBLIC

Content hashes

Canonical text8e3a096e6fdb2323f3433b6315feb41605c1456d99231b06e3f96489740f9aff
Markdown45686c7c92b186fea20cbf810d1569382494b3eb281863c1a4cc7f0b104f6885
PDF
Publication page39fd9a4fc0d797e6d30d5b568bac11ae906537a822d426859490d80c9746b05a
Manifestf29be3d69a787a6ac5b65bb736106e9e37b9aefac9ac73addd6b95b8cc7868f6

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
Signature8MrVFrM+tqW41m0J4Zi1R9TBpk0gdV89PhbjSvObmfT97BB/9cxl39SZTz0kc+7hteGrcEudbVLo9/UboPpfBQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T07:47:02Z
batch OT-TS-2026-W38-010 · RFC 3161 token · inclusion proof
root e1b42dfa4cd0fb1e3e472afd2db961c2...

Independent retrieval

2026-09-16T07:30:03.435926ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004659
observed 39fd9a4fc0d797e6d30d5b568bac11ae...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:30:03.422570ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004659/manifest.json
observed f29be3d69a787a6ac5b65bb736106e9e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:30:03.406813ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004659/publication.md
observed 45686c7c92b186fea20cbf810d156938...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:30:03.391469ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004659/publication.txt
observed 8e3a096e6fdb2323f3433b6315feb416...
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.