OpenTechnical

OT-2026-000103438

Publication integrity record

Two bellows cup vacuum gripper, two zone face, plant vacuum fed, pulsed blow-off after 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-2026-000103438) never changes.

Identity and time

Publication numberOT-2026-000103438 · never reused
Internal UUID01a0aea4-e460-7b89-bf34-31a873b6455d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:13:57.105586Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000103438
StatusPUBLIC

Content hashes

Canonical text82b1d86a72e98794b0f9aff8c5805831774c82a571083821b42a4959173d027b
Markdownd3bfd63c9795517178283445e07831ecc4d48c954905582fa6cba912fe86ef0c
PDF
Publication page6c108a5246bffaaa2ff8dfe1013abd1d454f77ca31c1ceaa628b1d0da77b75fa
Manifest537d01ece296273712b484145596a7ff865698c2a223784eabde422b0e7637c2

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
SignatureODxQJ/r1MZnoSZqShpAaGd0HsJfVXqUHapdOMgw2b/R4gCk2svcavwXOwk8pwdH1W3/OhOwuWndXWWjrDqDfCA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:27:04Z
batch OT-TS-2026-W38-023 · RFC 3161 token · inclusion proof
root 095d30148a2ef87d42d7818ebe7543f9...

Independent retrieval

2026-09-17T09:22:11.472022ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103438
observed 6c108a5246bffaaa2ff8dfe1013abd1d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:22:11.453998ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103438/manifest.json
observed 537d01ece296273712b484145596a7ff...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:22:11.434847ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103438/publication.md
observed d3bfd63c9795517178283445e07831ec...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:22:11.389722ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103438/publication.txt
observed 82b1d86a72e98794b0f9aff8c5805831...
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.