OpenTechnical

OT-2026-000091798

Publication integrity record

Three cup vacuum gripper, three zone face, four outlet manifold, plant vacuum fed, pressure sensor per zone, sustained 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-2026-000091798) never changes.

Identity and time

Publication numberOT-2026-000091798 · never reused
Internal UUID01a0ae9d-43ba-7035-908b-640c5dc861ef · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:37.256105Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091798
StatusPUBLIC

Content hashes

Canonical texted1e0cf86e7cd5b29c9d4388db18476fe35831784fefe50e01e639db013c4699
Markdown01ea94d80bd51e527b3c67c74580793b48cd04b4386d5a33bf6c59dedcb5fe59
PDF
Publication page57703004cb04c83e5b5b5a147eeac649449d1b44eb736b2cf67d2183651bf41b
Manifestb7a9782fccb1640c63b126ea4f5c60758d9f3a19148546a915c5f0aa04f3e47b

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
SignatureK8bexpAt1E8RaKLe2pb0oLHFjACKEhq1BLEQFGgZ+yOxKt5iH4Kk/ZSIIlEwaagxbSxW9oKFQ9wNrAUwRjvLBQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T09:42:41.935639ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091798
observed 57703004cb04c83e5b5b5a147eeac649...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:41.918458ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091798/manifest.json
observed b7a9782fccb1640c63b126ea4f5c6075...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:41.900155ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091798/publication.md
observed 01ea94d80bd51e527b3c67c74580793b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:41.881966ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091798/publication.txt
observed ed1e0cf86e7cd5b29c9d4388db18476f...
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.