OpenTechnical

OT-2026-000047955

Publication integrity record

Three cup vacuum gripper, three zone face, common isolation valve, single stage ejector, pressure sensor per zone, 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-2026-000047955) never changes.

Identity and time

Publication numberOT-2026-000047955 · never reused
Internal UUID01a0ae7f-c422-7e56-8bc7-1635cd8abaa6 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:33:24.028554Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000047955
StatusPUBLIC

Content hashes

Canonical text81d57318360982bbfb30e1345f968d9e87004f599f254500cb2735ef5eef7eb7
Markdownd583fda3e8edc49ef3dc3237d96b30df68c5c2f7fabe1599c24328c8d4393e60
PDF
Publication page9e64fe8a008c9813c3712320d7256b9d0ef31ee9c559d3bccae60a2aed0f60ad
Manifestf72f1852dd2f5fced22a917c5b8e7ec0e3b27f70c26bde92ceca18f6db9b11fd

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
SignatureGwOALBi/AhqDRoqWKRzDXc2pOPpyvhc5LE6yL1UD7wP8rVI14o3v8KfR1x5tZaelg5KqqcyMnz9C0O15+jYDBQ==
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

2026-09-17T11:05:55.564306ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047955
observed 9e64fe8a008c9813c3712320d7256b9d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:55.545999ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047955/manifest.json
observed f72f1852dd2f5fced22a917c5b8e7ec0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:55.526805ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047955/publication.md
observed d583fda3e8edc49ef3dc3237d96b30df...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:55.508171ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047955/publication.txt
observed 81d57318360982bbfb30e1345f968d9e...
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.