OpenTechnical

OT-2026-000021180

Publication integrity record

Six bellows cup vacuum gripper, six outlet manifold, pump fed, 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-2026-000021180) never changes.

Identity and time

Publication numberOT-2026-000021180 · never reused
Internal UUID01a0ae6f-865b-7b2b-8619-fd50220d6a69 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:39.631048Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000021180
StatusPUBLIC

Content hashes

Canonical textf78f25f71df2ed1b665a3fe4a8c5e88baf9c0deeaab8d7c9fbd95eda4f1df308
Markdownffb1ae16abb1daa4b4849974be924da050efdfda71d780799f912ef399601c17
PDF
Publication page6d516df1daf4ed862fc8ac6fd30eb67f8fe25d527cd6d180087102402a4c662e
Manifest15c7de2504a87be8b79a74f5279031d50d62ff3806836956e8dc422a985df4cc

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
SignatureURdS7SzG/CKMtnAdD4/O9sQjnvOGKRYl9ss8zeOYcxFRlqkXkGpw4s65L/EFYi2PygZVTo3iy9c498A6BbmlDg==
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

2026-09-17T11:54:57.801492ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021180
observed 6d516df1daf4ed862fc8ac6fd30eb67f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:57.770085ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021180/manifest.json
observed 15c7de2504a87be8b79a74f5279031d5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:57.750028ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021180/publication.md
observed ffb1ae16abb1daa4b4849974be924da0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:57.732392ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021180/publication.txt
observed f78f25f71df2ed1b665a3fe4a8c5e88b...
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.