OpenTechnical

OT-2026-000091447

Publication integrity record

Three bellows cup vacuum gripper, three zone face, three 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-2026-000091447) never changes.

Identity and time

Publication numberOT-2026-000091447 · never reused
Internal UUID01a0ae9c-f16d-760f-a7a7-cfc241e11461 · 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-2026-000091447
StatusPUBLIC

Content hashes

Canonical texteb685464a046d4b5073b79db5cbee369f158a3f37c68a67c31634d40046dc09d
Markdown094729f71cbd396343e7c12a5cf5b92761adeb4fabe1da5fcd56ce0de97a005a
PDF
Publication page478eb4ec1be90b072950d9d4d2522053135f017250a4e8f4df91664982fbf22a
Manifest8bb2159b5dab7eee1474f2b7ea5143e139f277274b32067c9ec59d4785be7c05

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
SignaturebgV88Goi/TbcP15+r4B6ADKcjXAF0gEBpAEt45e9DzrEPYjVE+ainHULCnIqFIOlORROO4/FrYVwoRU4/y6wAQ==
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

2026-09-17T09:43:41.733260ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091447
observed 478eb4ec1be90b072950d9d4d2522053...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:41.716453ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091447/manifest.json
observed 8bb2159b5dab7eee1474f2b7ea5143e1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:41.698124ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091447/publication.md
observed 094729f71cbd396343e7c12a5cf5b927...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:41.680740ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091447/publication.txt
observed eb685464a046d4b5073b79db5cbee369...
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.