OpenTechnical

OT-2026-000027288

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, pump fed, sustained 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-2026-000027288) never changes.

Identity and time

Publication numberOT-2026-000027288 · never reused
Internal UUID01a0ae72-6996-71e8-b494-48a1ca37be9e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:18:48.928538Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000027288
StatusPUBLIC

Content hashes

Canonical textd56fd8c4573dff26a8e2cc6f599b62b68d8cb3619b7e133abe9bc770e23e52be
Markdown7e5974588f68b4300d50cba333e7af220645ad7379492195b8227a94be4c4e13
PDF
Publication pagefa385ffdf81abbb18584550a7af7e0d7c347ea2ce65f6b5fa2d05e4a4246ec87
Manifest8ad80bab624cb3c3506f6dc86e353edf0fbb01ba6a9da0aa7ea0b81c26ee8b27

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
Signatureewl9t/3pf7jjZJunnbIQdTpIk72Esh/to+m5kBNnDvOdbtaKoA4hERJNlSKzsFlG/IPhnULQvh74Ehn3DmOvAg==
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

2026-09-17T11:42:40.572959ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027288
observed fa385ffdf81abbb18584550a7af7e0d7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:40.556558ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027288/manifest.json
observed 8ad80bab624cb3c3506f6dc86e353edf...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:40.538854ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027288/publication.md
observed 7e5974588f68b4300d50cba333e7af22...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:40.521974ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027288/publication.txt
observed d56fd8c4573dff26a8e2cc6f599b62b6...
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.