OpenTechnical

OT-2026-000055931

Publication integrity record

Four cup vacuum gripper, four zone face, common isolation valve, single stage ejector, supply line pressure sensor, pulsed blow-off 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-2026-000055931) never changes.

Identity and time

Publication numberOT-2026-000055931 · never reused
Internal UUID01a0ae87-0a4a-734f-9c9f-aaba953c1606 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:41:20.734835Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000055931
StatusPUBLIC

Content hashes

Canonical textb6ea9ec3c243b6d746a9df8f5fa9b72cc2735b87a2df80605024b2ba19df8fa1
Markdownd59fb643bf33ed82b8e17cb50ffde93e67ee08ce91d574e644ec87f263977d09
PDF
Publication pagee24cb7558e7f08e0af78f2eedab5cd415e1221f9a7b4406ee291e359c128ff05
Manifest176ff0e629335fbad5dd8085a9c5af34d5e7616e6740003876f201ca0524a7cb

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
SignatureLDY9UMaLjBZFoaBc/2m3nzEMuUo6c5cTMnyzQdu/dyE6KkCnG/f7yMq3/thLew6WgzQCv1WMNwaMV8VEal3IDw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...
timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T10:51:26.773295ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055931
observed e24cb7558e7f08e0af78f2eedab5cd41...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:26.755687ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055931/manifest.json
observed 176ff0e629335fbad5dd8085a9c5af34...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:26.737844ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055931/publication.md
observed d59fb643bf33ed82b8e17cb50ffde93e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:26.720438ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055931/publication.txt
observed b6ea9ec3c243b6d746a9df8f5fa9b72c...
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.