OpenTechnical

OT-2026-000007108

Publication integrity record

Porous face vacuum gripper, pump fed, pressure verified, vented after set down, open 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-2026-000007108) never changes.

Identity and time

Publication numberOT-2026-000007108 · never reused
Internal UUID01a0a972-fa9e-707a-b303-6f0a6ea82be4 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T09:01:19.905441Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000007108
StatusPUBLIC

Content hashes

Canonical texteb6a1cfbf87fd255b45265da65473644dbef219f0d9d687f190f301838d06980
Markdown239eeeaf0f28488f947344aeb4cee3cbcfeb58ad270bed4de8943af5deaf70b7
PDF
Publication pageb160f4b574f9e79466e6e3e41c239460247825113564eeaeea895477aa2d0a58
Manifest93aa31f81cc98d15f7b360236cb93137d297e0b9d96841ca24066fb0f11358d6

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
SignaturePRP/CiioWYcdGrspqwuZHTI0fvLhZ9JaYsniXzqg/Bey+Ga54qIFF4NMtoWO3Yd9RzEdwQcCkmdtu8pkGJ2OCQ==
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

2026-09-16T09:10:26.208046ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007108
observed b160f4b574f9e79466e6e3e41c239460...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:10:26.193206ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007108/manifest.json
observed 93aa31f81cc98d15f7b360236cb93137...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:10:26.179432ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007108/publication.md
observed 239eeeaf0f28488f947344aeb4cee3cb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:10:26.165364ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007108/publication.txt
observed eb6a1cfbf87fd255b45265da65473644...
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.