OpenTechnical

OT-2026-000103509

Publication integrity record

Foam pad vacuum gripper, three zone face, two stage ejector, pulsed blow-off 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-2026-000103509) never changes.

Identity and time

Publication numberOT-2026-000103509 · never reused
Internal UUID01a0aea4-e461-71ac-82a5-45fff8bb633b · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:13:57.105586Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000103509
StatusPUBLIC

Content hashes

Canonical text484c77d18134233d09005a43ea243f4d745372211e5c4d5c058bcf9233353cdc
Markdown74e36d08b446149fd513ba9ccd027993372007933536c456081e3af31729a17c
PDF
Publication pagecc8469c990c797b0b3a6311a61fdbe029cd4de9078c498afc6527699c819517d
Manifest63ccce69e4f7638b445f3d4280ed8c2c475734b5947ca556e8057ddd3f508915

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
SignatureG5EIOR5ZF0Jvf/9XBg5bDj1Bpy9FJRmC6sha8Ja4PMRI1wSp/+9LSaFjZd4fHVR8faE/uQocIQOmjr/Oqw3KCQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:27:04Z
batch OT-TS-2026-W38-023 · RFC 3161 token · inclusion proof
root 095d30148a2ef87d42d7818ebe7543f9...

Independent retrieval

2026-09-17T09:22:16.650042ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103509
observed cc8469c990c797b0b3a6311a61fdbe02...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:22:16.633686ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103509/manifest.json
observed 63ccce69e4f7638b445f3d4280ed8c2c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:22:16.617614ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103509/publication.md
observed 74e36d08b446149fd513ba9ccd027993...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:22:16.600259ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103509/publication.txt
observed 484c77d18134233d09005a43ea243f4d...
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.