OpenTechnical

OT-2026-000013309

Publication integrity record

Four cup vacuum gripper, four outlet manifold, three stage ejector, pulsed 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-2026-000013309) never changes.

Identity and time

Publication numberOT-2026-000013309 · never reused
Internal UUID01a0ae6d-6fc9-7141-8e94-244ccf802970 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:22.837188Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000013309
StatusPUBLIC

Content hashes

Canonical text0815184f87f5e180b866628a1abdf4f662ecd8cf244dff86ed2bbdd2e8d1c7f8
Markdownf5140eb1da05b96410d275fb289aa7c2a00439e5ca59c2c989e08851b0842c6c
PDF
Publication pagef4e45fd10b73cd3ca6bf8aaaae2943edde439cada872f04528ba3755320073f3
Manifestcbe63363a5cf6b4558913c074760b90b62ce95c1a0b201f92f8d1f7aec906e5d

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
SignatureI/atEZK4Fr6jl8pKfmbvXZzclP83D8cX5XhA+SYNqZ1WBeVE9nFsYJ8yFV0E/+wkYV3+XM6PmHP/zWdXyT/5Aw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T12:09:44.345364ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013309
observed f4e45fd10b73cd3ca6bf8aaaae2943ed...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:44.325645ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013309/manifest.json
observed cbe63363a5cf6b4558913c074760b90b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:44.306189ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013309/publication.md
observed f5140eb1da05b96410d275fb289aa7c2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:44.286757ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013309/publication.txt
observed 0815184f87f5e180b866628a1abdf4f6...
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.