OpenTechnical

OT-2026-000006949

Publication integrity record

Porous face vacuum gripper, plant vacuum fed, pressure verified, vented before set down, closed cell

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-2026-000006949) never changes.

Identity and time

Publication numberOT-2026-000006949 · never reused
Internal UUID01a0a96d-596c-7de9-a69f-9f0b12d4af02 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:55:10.959591Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006949
StatusPUBLIC

Content hashes

Canonical text4c784d13d13ce6d3949e2e9c17d3ecc8ab653120946035115c4163daf5a9f756
Markdown042dc0fd775501c8d2e9ed57233f394806b839e3dd969eeaf45ec0677844ec62
PDF
Publication page704085ce420176384689b31b8825a0e872192006a5adfe00942de8e4733a8aa8
Manifest6d1b5c0e3361e911404d6d2b61c3dd699c88a247cfe4c81397ffb220aff7d1c6

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
SignatureZbVW1398z9LODdyjW1GpzMier9IJil7qxzD/iRpj2UMn2NHy3ql0emz3xft46Z1HuEnE4tYIjDvc8Rzwu7LODQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T09:07:03Z
batch OT-TS-2026-W38-014 · RFC 3161 token · inclusion proof
root 2354c19da800f8df297acf3cddd64d4d...

Independent retrieval

2026-09-16T09:00:18.709109ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006949
observed 704085ce420176384689b31b8825a0e8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:00:18.695832ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006949/manifest.json
observed 6d1b5c0e3361e911404d6d2b61c3dd69...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:00:18.684589ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006949/publication.md
observed 042dc0fd775501c8d2e9ed57233f3948...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:00:18.671178ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006949/publication.txt
observed 4c784d13d13ce6d3949e2e9c17d3ecc8...
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.