OpenTechnical

OT-2026-000081007

Publication integrity record

Foam pad vacuum gripper, three zone face, common isolation valve, pump fed, 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-2026-000081007) never changes.

Identity and time

Publication numberOT-2026-000081007 · never reused
Internal UUID01a0ae96-b976-73c7-99ad-a1111225dbe7 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:28.739380Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081007
StatusPUBLIC

Content hashes

Canonical text0b7d6b90204e2be1e179c412f1c2fbc18a86a7f87cc568123438561dbb9d8ace
Markdown982015d9ea144b7cbdd39fd02ef33555078abac79c8e5e0c280aa3d8806c3e04
PDF
Publication page72759cb69fe34f75427846c3e2ce638d4b76316b341243b390d7224f007275b5
Manifest0e33a7c9deb849b96cb9165c41f47a179ecf618b1d108051a13e575ddc7f93a3

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
SignatureGyTPx5T7TQhlfs12MesHst86hIoRKPr11MpyQVDi+m3cxW/wN7P/wyE9mJjkBMK/WCJ4p9kOUpQkiWK3qWoWDA==
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

2026-09-17T10:02:17.686390ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081007
observed 72759cb69fe34f75427846c3e2ce638d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:17.670515ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081007/manifest.json
observed 0e33a7c9deb849b96cb9165c41f47a17...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:17.655183ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081007/publication.md
observed 982015d9ea144b7cbdd39fd02ef33555...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:17.639299ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081007/publication.txt
observed 0b7d6b90204e2be1e179c412f1c2fbc1...
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.