OpenTechnical

OT-2026-000075604

Publication integrity record

Single bellows cup vacuum gripper, plant vacuum fed, 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-2026-000075604) never changes.

Identity and time

Publication numberOT-2026-000075604 · never reused
Internal UUID01a0ae94-29fd-71b3-9858-c8b99ec23a53 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:40.814795Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000075604
StatusPUBLIC

Content hashes

Canonical textd5a136feb6c505447cbb6903c6edafd92208795914afe508fd2b6f1b5c0b2ddc
Markdown37cc91a60eaeca6373382b24d426ffe9da6d06f96f769cb534b0991e265437ce
PDF
Publication page58969e7ca1b05327c0dd2263b7208d81011bd8ee647312df0d312e7064e9bf0d
Manifestdff12503b5ddfddffe12695d002a79d990fa969f86d9a420b8867d250bc80128

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
SignatureG5qFLNqc1jXUM5l9JXXpGvAp1KkW6VoxJ0hBw9t3rfWKd50ToCxSLBmvZc0XYmTmplwLGgriEeO4ZJCGPnlSBA==
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

2026-09-17T10:13:17.272235ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075604
observed 58969e7ca1b05327c0dd2263b7208d81...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:13:17.243094ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075604/manifest.json
observed dff12503b5ddfddffe12695d002a79d9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:13:17.218552ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075604/publication.md
observed 37cc91a60eaeca6373382b24d426ffe9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:13:17.196332ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075604/publication.txt
observed d5a136feb6c505447cbb6903c6edafd9...
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.