OpenTechnical

OT-2026-000007347

Publication integrity record

Porous face vacuum gripper, three outlet manifold, plant vacuum fed

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-2026-000007347) never changes.

Identity and time

Publication numberOT-2026-000007347 · never reused
Internal UUID01a0a97b-96da-7399-aac0-fc058d630e6b · UUIDv7, RFC 9562
Publication timestamp2026-09-16T09:10:44.189458Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000007347
StatusPUBLIC

Content hashes

Canonical text448cbd346efe3e53c34fa2969516a842eac9c0fb6c255726e0ec0ae4326f5c52
Markdowncef8bbe2928eebb45737c5c0717659d4dbb47873979b2d1c124dc253a66f9fa2
PDF
Publication page4c2dd9739f884b3840fcb97d58cfa68884709f8732c7d5de97fc284b3d3aa630
Manifestad3fd3288348d46f219588bd1754ed842bce14ede9b48cfb88e4f3322f927943

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
SignaturerQ+e8+jd2L6pELK04tAhvmTdTRWIfBwP6iSxekytxoA2C/8ZaLl9GnYMybHh0iJtMawVMhErpT8+ISTpRNcvCA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T09:20:33Z
batch OT-TS-2026-W38-015 · RFC 3161 token · inclusion proof
root 07bfbe2fb3517c1c41f239fb2e682fbe...

Independent retrieval

2026-09-16T09:20:10.428999ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007347
observed 4c2dd9739f884b3840fcb97d58cfa688...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:20:10.415170ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007347/manifest.json
observed ad3fd3288348d46f219588bd1754ed84...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:20:10.401036ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007347/publication.md
observed cef8bbe2928eebb45737c5c0717659d4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:20:10.387328ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007347/publication.txt
observed 448cbd346efe3e53c34fa2969516a842...
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.