OpenTechnical

OT-2026-000067471

Publication integrity record

Four cup vacuum gripper, four zone face, common isolation valve, pump fed, pressure sensor per zone, pulsed 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-2026-000067471) never changes.

Identity and time

Publication numberOT-2026-000067471 · never reused
Internal UUID01a0ae8f-6bd9-7314-9b04-5c095c43a38e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:50:29.998864Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000067471
StatusPUBLIC

Content hashes

Canonical textb9b5b6dac79d0e0495c26bfbaaba9baba84b8b1bc579630f16f71202575150f6
Markdown1ae3fada94bef52fc4fd25ad0344225686fcb159943c0d9c0ea728532b510581
PDF
Publication page5c41d112f99f7b38be48e41f7a5dc679006509428dd942922a8a723d9715b797
Manifest1c585fae2d70382795dec3041f4dbb34c4ca37761ca4272c123d9c06285231eb

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
SignaturepdkAnM91E3g/m8gCXz6WSwa1NsntYMrMDggy6UBsXTWyO3PWCPq12CS9Ykcn/utPC/MJB0zU6njCqFjBHVkKCw==
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

2026-11-04T04:41:29.064603ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067471
observed 5c41d112f99f7b38be48e41f7a5dc679...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-11-04T04:41:29.015816ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067471/manifest.json
observed 1c585fae2d70382795dec3041f4dbb34...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-11-04T04:41:28.945906ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067471/publication.md
observed 1ae3fada94bef52fc4fd25ad03442256...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-11-04T04:41:28.871920ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067471/publication.txt
observed b9b5b6dac79d0e0495c26bfbaaba9bab...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T10:31:40.820309ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067471
observed 5c41d112f99f7b38be48e41f7a5dc679...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:31:40.803956ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067471/manifest.json
observed 1c585fae2d70382795dec3041f4dbb34...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:31:40.786443ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067471/publication.md
observed 1ae3fada94bef52fc4fd25ad03442256...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:31:40.769029ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067471/publication.txt
observed b9b5b6dac79d0e0495c26bfbaaba9bab...
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

OT-CUSTODY-2026-W38OpenTechnical-Custody-2026-W38.tar.zst
f2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent