OpenTechnical

OT-2026-000033989

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, 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-2026-000033989) never changes.

Identity and time

Publication numberOT-2026-000033989 · never reused
Internal UUID01a0ae75-df0b-7d1e-9820-95ea8b4f9390 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:22:35.550760Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000033989
StatusPUBLIC

Content hashes

Canonical textde58ee27a6ad5a33bb9e36073789790be044693ff21eb961715f49f7590321c8
Markdown2806ede10ea9923bca454fc6232e8b2937cd599ce79db42c14fbe7905c218bec
PDF
Publication pagebf11effd9e7cf3bf2f8eabcfef2ab342e9cb6aaa87931ba8fd8ed6d649bd6360
Manifest461a114ae303b04fd2ae2b4edf3d9bd4c30ca6127100289e40021ac182171c42

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
SignatureZaWlwHZvw84BY2W65ZC6mAaKfq5h7qiNeGRoAXh/a/Jdq35y9Vzy/wXXWQISk4PfaMiPp+qVdqchDyZ8IodJBg==
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

2026-09-17T11:30:07.744405ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033989
observed bf11effd9e7cf3bf2f8eabcfef2ab342...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:30:07.724028ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033989/manifest.json
observed 461a114ae303b04fd2ae2b4edf3d9bd4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:30:07.706526ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033989/publication.md
observed 2806ede10ea9923bca454fc6232e8b29...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:30:07.683749ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033989/publication.txt
observed de58ee27a6ad5a33bb9e36073789790b...
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.