OpenTechnical

OT-2026-000013516

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-2026-000013516) never changes.

Identity and time

Publication numberOT-2026-000013516 · never reused
Internal UUID01a0ae6d-6fcb-7583-96af-50bc0a358052 · 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-2026-000013516
StatusPUBLIC

Content hashes

Canonical text43fea9acce3316c564e6970bc8cd8304bfe935d6681a84696878ba6d6e3313a9
Markdownaae8d6c424fde33e0e95d3a6d53678bc2d3146f8f8dc5f6818f4d558413a8df1
PDF
Publication page483845a12c4d67a755b7916770ea0cf7d551bee802d665333451e6401cff51f9
Manifest49be6aa11ccd2a3fc4add1f9401562b08e772591fc9b56a53f2837faae547254

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
SignatureJSmIoL6ZiuGstAstEGSn3FemOwpe3YfNSoX6LO9gygFN+MGvmGSaNVU5ECpfNlUVCrFGp0QYoBUM4LDndLnmDA==
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

2026-09-17T12:10:01.830381ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013516
observed 483845a12c4d67a755b7916770ea0cf7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:01.814223ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013516/manifest.json
observed 49be6aa11ccd2a3fc4add1f9401562b0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:01.797988ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013516/publication.md
observed aae8d6c424fde33e0e95d3a6d53678bc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:01.779561ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013516/publication.txt
observed 43fea9acce3316c564e6970bc8cd8304...
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.