OpenTechnical

OT-2026-000072518

Publication integrity record

Two bellows cup vacuum gripper, two outlet manifold, single stage ejector, supply line pressure sensor, vented 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-2026-000072518) never changes.

Identity and time

Publication numberOT-2026-000072518 · never reused
Internal UUID01a0ae92-89d8-7d7d-b249-1800c9e82c73 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:54.283203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000072518
StatusPUBLIC

Content hashes

Canonical text5703d37ddd1ff4c4de3ece7b21335d257070bfc57f90b136885745e62f90c415
Markdown71b57085ca9176fb7ff534800d8b3d1e49f6db069e389a25862b556deb34844c
PDF
Publication page16bf30a49366174a2db8edc2f33d4a0cc3a9e931a433f7b00c5cfbec2cdb3871
Manifestdf664dc638131ba9dda173a5c9ff59d673dbe712c6a566ab3b42d7160ccb2d3e

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
SignatureMtM1pX6f/J3KBPQlSvJjSBcXbMGvmIpru3u2lQzXSov52b9JqS+Hk+DrBXrBK35Q/TusrLIKtJvOSdDY5AXNDA==
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

2026-09-17T10:22:20.921895ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072518
observed 16bf30a49366174a2db8edc2f33d4a0c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:20.904442ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072518/manifest.json
observed df664dc638131ba9dda173a5c9ff59d6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:20.885665ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072518/publication.md
observed 71b57085ca9176fb7ff534800d8b3d1e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:20.868002ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072518/publication.txt
observed 5703d37ddd1ff4c4de3ece7b21335d25...
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.