OpenTechnical

OT-2026-000091473

Publication integrity record

Three bellows cup vacuum gripper, three zone face, three outlet manifold, pump fed, pressure sensor per zone, sustained 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-2026-000091473) never changes.

Identity and time

Publication numberOT-2026-000091473 · never reused
Internal UUID01a0ae9c-f16d-7a8d-aceb-8b7e1bbf3bf0 · 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-2026-000091473
StatusPUBLIC

Content hashes

Canonical text0a86bc75a9c20e8e0843e518050eebeb2e736e3867e8ee3135c1032f209adc62
Markdown58dd239eb7a31de54dca8ec87fbb941317f74956ad5b5c9ba7a8d33ff958f991
PDF
Publication page2d1bd9d060a9c4904b81224db05759f8b262497172aa37b00b779e29650a881c
Manifest7bf1d1c39807348ac1b05e23ce40f93c9a2371ba92d2e5b756e31bb0c29f8df3

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
Signatureg2Dy4fX9JbaZM2lzfeWA5JybVIIl0uVcZgKXJKq9jcBLYfEOoQF0JTjvZbgoklo2vE/q270uK08vF6htTqtXCw==
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

2026-09-17T09:43:41.233662ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091473
observed 2d1bd9d060a9c4904b81224db05759f8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:41.213415ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091473/manifest.json
observed 7bf1d1c39807348ac1b05e23ce40f93c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:41.185879ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091473/publication.md
observed 58dd239eb7a31de54dca8ec87fbb9413...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:41.156069ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091473/publication.txt
observed 0a86bc75a9c20e8e0843e518050eebeb...
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.