OpenTechnical

OT-2026-000007131

Publication integrity record

Bellows cup vacuum gripper, two stage ejector, pressure verified, sustained blow off after set down

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-2026-000007131) never changes.

Identity and time

Publication numberOT-2026-000007131 · never reused
Internal UUID01a0a973-c9ef-729a-8a52-39e29e60874a · UUIDv7, RFC 9562
Publication timestamp2026-09-16T09:02:12.978656Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000007131
StatusPUBLIC

Content hashes

Canonical textd8956be0c8cdaf114510d7b4076cba5ae5fd2795533c2103584bc1485ab2d326
Markdownba7ffd200fddc4ead02e439d73d21db58b52e32f02d4c9a88d5077595902373a
PDF
Publication pagecf767334e2984903cc5207446db039d3466f1a30f513a6ae91dd69970f0bfa18
Manifestd5f3727b21326c4128b657953b5a6b80d1df67e5059b8d3f1838762d7b45c83b

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
SignatureHWkicw9HUtG4vnvfj1vU8jV0iGQigXHP0fbchKxAhw/BWZHLH7NxWnZpuiLYR2Oqb4sUgNUyw2nHHyLyucCeCw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T09:07:03Z
batch OT-TS-2026-W38-014 · RFC 3161 token · inclusion proof
root 2354c19da800f8df297acf3cddd64d4d...

Independent retrieval

2026-09-16T09:10:23.668725ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007131
observed cf767334e2984903cc5207446db039d3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:10:23.657861ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007131/manifest.json
observed d5f3727b21326c4128b657953b5a6b80...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:10:23.644980ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007131/publication.md
observed ba7ffd200fddc4ead02e439d73d21db5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:10:23.632574ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007131/publication.txt
observed d8956be0c8cdaf114510d7b4076cba5a...
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.