OpenTechnical

OT-2026-000051325

Publication integrity record

Single cup vacuum gripper, common isolation valve, pump fed, vented 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-2026-000051325) never changes.

Identity and time

Publication numberOT-2026-000051325 · never reused
Internal UUID01a0ae83-2740-7f01-a611-c032582e69bb · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:37:05.998905Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000051325
StatusPUBLIC

Content hashes

Canonical textf9d18f4c22ff2c7c7aabbd59fab1695460fe26372b45dfdcca7e5f88763865a9
Markdown5bbfb323196e98a1dda956b19464f4f27f99d60813bf221920c137dc4038ec3a
PDF
Publication pagefcd3194e66eed436794a499bd2e375c5ba19205d4f77f014b300dedbdba7011a
Manifest85cc11181e651040c948656ee553455cf7c9ccce648ee243710a4b9a8e63557c

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
Signature+WHK7V0SizevNb+4lRA5TDRGwcKfWNLqiJaTd4O4TF+UergfQFM3/8OuSo23iCahSTO/WZFhxubfpDBNgVAhCw==
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

2026-09-17T10:59:12.379306ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000051325
observed fcd3194e66eed436794a499bd2e375c5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:59:12.356303ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000051325/manifest.json
observed 85cc11181e651040c948656ee553455c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:59:12.337900ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000051325/publication.md
observed 5bbfb323196e98a1dda956b19464f4f2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:59:12.319410ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000051325/publication.txt
observed f9d18f4c22ff2c7c7aabbd59fab16954...
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