OpenTechnical

OT-2026-000043088

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, plant vacuum fed, pulsed blow-off 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-2026-000043088) never changes.

Identity and time

Publication numberOT-2026-000043088 · never reused
Internal UUID01a0ae7b-327a-7c82-9102-4f6568e738a1 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:28:24.717423Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000043088
StatusPUBLIC

Content hashes

Canonical textd6af4b6b9ae5888a569795b8c3b30c3dab6bed8f9bcf312c94109b44c3aec7a2
Markdown14c66e3c63ea58e1ddf5e35f9ac74deb0b0a6fb8e82b128765f6731a9cdedfad
PDF
Publication page77a306eb1100d9b55b4248a31eebdec77152c83844a135b591569a07e9236098
Manifest8075486931e25716fd4a0c0bc61bb360b684d228f8fcd469f18149e048657405

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
SignatureOn2uGVUTKFEaKWcK9HKM6CPAV0JTgzlnUUS9KntFqgpiQrcAuDLMVIA9leruAnyL7qW2NvqOmVxJNHyFb0txDA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:13:30.358062ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043088
observed 77a306eb1100d9b55b4248a31eebdec7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:30.337999ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043088/manifest.json
observed 8075486931e25716fd4a0c0bc61bb360...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:30.317721ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043088/publication.md
observed 14c66e3c63ea58e1ddf5e35f9ac74deb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:30.300390ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043088/publication.txt
observed d6af4b6b9ae5888a569795b8c3b30c3d...
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.