OpenTechnical

OT-2026-000013540

Publication integrity record

Single bellows cup vacuum gripper, plant vacuum fed, pulsed blow-off before set-down

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-2026-000013540) never changes.

Identity and time

Publication numberOT-2026-000013540 · never reused
Internal UUID01a0ae6d-6fcb-7f17-9ef9-b1374bb50505 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:22.837188Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000013540
StatusPUBLIC

Content hashes

Canonical textfa42a2b2e387f73b951bf13fe8e7c3abfdcfb35e415ffab53640d3118b474354
Markdownb1dbfbde0e050e4db415aa2d55bf5a176f2df15969c603358f9279566a9769a9
PDF
Publication page0582a615d7eb8b8fe78353ef13602a41fc412db996c0fc3f4dc7060fbe4f272d
Manifest37a3676fde4d63709139629c499b9b1553a98335cf1cec64cb0f273a0acc556a

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
SignaturedRcYcmWbs5K/TG8T29xpDns8UMY3V5NGsy6y0zlxFw5eO6SKoFPM14CLHhNEvmCTxIlfjt74nd/mZaLwnIrHAg==
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

2026-09-17T12:10:04.916740ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013540
observed 0582a615d7eb8b8fe78353ef13602a41...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:04.892127ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013540/manifest.json
observed 37a3676fde4d63709139629c499b9b15...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:04.871339ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013540/publication.md
observed b1dbfbde0e050e4db415aa2d55bf5a17...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:04.837284ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013540/publication.txt
observed fa42a2b2e387f73b951bf13fe8e7c3ab...
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.