OpenTechnical

OT-2026-000028375

Publication integrity record

Foam pad vacuum gripper, three zone face, per zone isolation, two stage ejector, 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-2026-000028375) never changes.

Identity and time

Publication numberOT-2026-000028375 · never reused
Internal UUID01a0ae72-e2f5-7068-97ce-ae3dbf17046c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:19.949572Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028375
StatusPUBLIC

Content hashes

Canonical textb98123b3aa31f618622b0a797c5bece443251a4019568b4822e2e57505a7823f
Markdownf5a14ed040e2d7ce30a38c3683453ebdf1cde6b94aaf58d9220b9298d97acc5a
PDF
Publication pagef454b342b67958ddec9902771a388145e10d85c3ec0e86371eb6d7cffc8d052c
Manifestab74bf1230eb402e415bc187bba3414b168a7ce2448d4935c265d865ba278fcc

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
SignaturepelJwMEc53crzMr/Jij8s5tnyy1lPJezqHocjvoDqgKSF8B3EdukdpI0uBTT78lody/Lg3Oyk3zt3SZ9yz6aBA==
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

2026-09-17T11:40:23.487519ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028375
observed f454b342b67958ddec9902771a388145...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:23.469212ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028375/manifest.json
observed ab74bf1230eb402e415bc187bba3414b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:23.449496ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028375/publication.md
observed f5a14ed040e2d7ce30a38c3683453ebd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:23.431336ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028375/publication.txt
observed b98123b3aa31f618622b0a797c5bece4...
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.