OpenTechnical

OT-2026-000055701

Publication integrity record

Two cup vacuum gripper, two outlet manifold, pump fed, supply line pressure sensor, vented 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-2026-000055701) never changes.

Identity and time

Publication numberOT-2026-000055701 · never reused
Internal UUID01a0ae87-09ca-7cb3-ba71-cfddd2b46636 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:41:20.734835Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000055701
StatusPUBLIC

Content hashes

Canonical textaf39490488b72743c397c53291a50df75f566887ddee759381affa713a492ee4
Markdown378ab87b7bd5b47666f8e62c1f79572c8def80ed94262da158cd7668c5af83e5
PDF
Publication pagef5ca7f7c105225ea0fda3949897964f5c6f169b1f4ebaefcc31e2c69ee49a59c
Manifestb5f5119c48c8c9d2567740a34c855a27702647439b4ebdc08e6c81bc019ded43

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
SignaturerPVtqyuB1KBCnZRRkt8cqzkbbRw8chDiuOkj6dSR3ij+tmQl4m84CDATz6rve+Bk/39z6Sm5C35N4B23V4VMBg==
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

2026-09-17T10:51:01.691193ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055701
observed f5ca7f7c105225ea0fda3949897964f5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:01.672758ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055701/manifest.json
observed b5f5119c48c8c9d2567740a34c855a27...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:01.654505ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055701/publication.md
observed 378ab87b7bd5b47666f8e62c1f79572c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:01.635988ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055701/publication.txt
observed af39490488b72743c397c53291a50df7...
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.