OpenTechnical

OT-2026-000091578

Publication integrity record

Two bellows cup vacuum gripper, two zone face, four outlet manifold, pump 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-2026-000091578) never changes.

Identity and time

Publication numberOT-2026-000091578 · never reused
Internal UUID01a0ae9c-f16e-7fb7-9987-2e1eed57de72 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:16.158740Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091578
StatusPUBLIC

Content hashes

Canonical text611a1ab38b9e9e3a35d5fbc40854963b0b5ac63a26f7cc4514a642b9b18d8283
Markdowncc21e2802766dd737b5bf3784e1252d306a729563873a88d21df74c163355b2d
PDF
Publication pageccf4789db9f7cd84419531ed40de9f623e1cd443c63e279ae4eb7e42d58f3d59
Manifesteae53059c1bb1be3199005010e185d2b5ce8771da46fea4c18eaf2d24d494df1

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
SignatureJ2lTIL5q9E7TXvg8fD/1nMfWza5Vu2UcliSrWwjD3ivbi7A6y2gqmbnXm5JRmSTBnvDYL8AxAECYsNreH4WKBw==
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

2026-09-17T09:43:51.029628ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091578
observed ccf4789db9f7cd84419531ed40de9f62...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:51.012920ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091578/manifest.json
observed eae53059c1bb1be3199005010e185d2b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:50.995680ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091578/publication.md
observed cc21e2802766dd737b5bf3784e1252d3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:50.979000ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091578/publication.txt
observed 611a1ab38b9e9e3a35d5fbc40854963b...
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.