OpenTechnical

OT-2026-000059781

Publication integrity record

Single cup vacuum gripper, pump fed, vented after 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-2026-000059781) never changes.

Identity and time

Publication numberOT-2026-000059781 · never reused
Internal UUID01a0ae89-ec25-7276-9819-8365c276bd93 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:44:29.732559Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000059781
StatusPUBLIC

Content hashes

Canonical textff2684e955759a027aaf244f9cfb9dfcb06978bc45878c33652f2c3c907e66cc
Markdown6932f18f1035c5443c0a321cd4c699f1b8eb7201f205fccd07ecf697134fe208
PDF
Publication pagec69a6261caff6dbba35f8fc6cb28365c0290d4bfefdedcae627e390232721fb8
Manifestedb1370be350735b73ff6a24d707944aebf6483cd1b2096c56c629823a8633e2

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
SignatureFO2RGH59wIOHqZute6jYHVE7XgFdi+WcFxCSUDykSBdSuP7qNV7lAKMHIAEiQ2M038rFoY+1PSNcx7IV/JdRBA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...

Independent retrieval

2026-09-17T10:44:30.661192ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000059781
observed c69a6261caff6dbba35f8fc6cb28365c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:44:30.644346ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000059781/manifest.json
observed edb1370be350735b73ff6a24d707944a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:44:30.627557ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000059781/publication.md
observed 6932f18f1035c5443c0a321cd4c699f1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:44:30.610060ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000059781/publication.txt
observed ff2684e955759a027aaf244f9cfb9dfc...
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.