OpenTechnical

OT-2026-000056404

Publication integrity record

Two bellows cup vacuum gripper, two outlet manifold, plant vacuum fed, sustained 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-2026-000056404) never changes.

Identity and time

Publication numberOT-2026-000056404 · never reused
Internal UUID01a0ae87-4bd2-72e0-a974-0c81548c5b50 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:41:37.517586Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000056404
StatusPUBLIC

Content hashes

Canonical text5e92cbfc487ddb9e72b50472fc7eaaf71766548c115ac0491a55928962f503fb
Markdownd545f6b5d63e150eba57251fcda53762d0c6d948b680a7cf153e50da497e9dfc
PDF
Publication page45150c82eef9e36125fe33795b12533b9d3fe736791129ab24c031de5abfb7c4
Manifestb1c348b3578ff54640ccefb46c52e53ee2ec733447aa8c10630c2a22abf5a536

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
Signature0Z9T4cEc6rZ26B/XV9yzmFutIcuJl+vqpUc1y+gwj3yLRm2ks+tlhUz56SGwkLHMas3W2C3jCZBYuB3+bSw7Bw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...
timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T10:50:56.114587ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056404
observed 45150c82eef9e36125fe33795b12533b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:50:56.096462ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056404/manifest.json
observed b1c348b3578ff54640ccefb46c52e53e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:50:56.079184ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056404/publication.md
observed d545f6b5d63e150eba57251fcda53762...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:50:56.062500ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056404/publication.txt
observed 5e92cbfc487ddb9e72b50472fc7eaaf7...
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.