OpenTechnical

OT-2026-000075080

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, pump fed, manifold 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-2026-000075080) never changes.

Identity and time

Publication numberOT-2026-000075080 · never reused
Internal UUID01a0ae93-ac2e-7511-8213-ec0c1cb44f62 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:08.693295Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000075080
StatusPUBLIC

Content hashes

Canonical textdd0cd25e3840567a9e6f7186073442c310db3afb4abb443eb8a7139458db917d
Markdown663fe7d15534ba715ae6f2e7616a18dc7677f674081df55a897e7169c6457eee
PDF
Publication page5e9aa0be71bf321ca6de3492217cb9c546eff6a905e5b9e98448480316392017
Manifest6e259ed52fba9127980c4f41c4ed385ff41aabaf6d129e77dc03004033075855

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
Signature1WTA1aXnSTGvBjPaiL7OD6BvL8kMQ/M4XoPBPi9bY4/ToCOrYVxTs4j5rzwqLGSOgQPZlVDq2h5FFpm+uMrOAQ==
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

2026-09-17T10:18:54.086384ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075080
observed 5e9aa0be71bf321ca6de3492217cb9c5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:18:54.068879ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075080/manifest.json
observed 6e259ed52fba9127980c4f41c4ed385f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:18:54.051220ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075080/publication.md
observed 663fe7d15534ba715ae6f2e7616a18dc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:18:54.034656ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075080/publication.txt
observed dd0cd25e3840567a9e6f7186073442c3...
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.