OpenTechnical

OT-2026-000028517

Publication integrity record

Six cup vacuum gripper, six outlet manifold, two stage ejector, manifold pressure sensor, 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-2026-000028517) never changes.

Identity and time

Publication numberOT-2026-000028517 · never reused
Internal UUID01a0ae72-e2f8-7bf0-97a0-0c1a0cc86d93 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:19.949572Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028517
StatusPUBLIC

Content hashes

Canonical texte4426b30aa3089e5896bd5bc1695796c8ba816523f8d58333804497783e0d05e
Markdown2c41cfbdd607b09d316318d104b472b76e726d1dc024ea580fb59753f49271fc
PDF
Publication page11e7ac2eb8d3e6bcf0eb91b8346d146c5a451a022ddd8efdca14d0060d9d1286
Manifestde51a735f8ab5eec8f5393fe69db4e29486635ea5fbdc1f0957cf5d29034cb7d

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
Signaturerwob7YxYyLz+zhC4o88I/bmOKrI+bLcp6XRCszupYXv8ca0/PW6QrIfN0JBcMThzKv9ndoBhG46CHvrkeFvmAg==
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

2026-09-17T11:40:47.126522ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028517
observed 11e7ac2eb8d3e6bcf0eb91b8346d146c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:47.109322ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028517/manifest.json
observed de51a735f8ab5eec8f5393fe69db4e29...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:47.090573ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028517/publication.md
observed 2c41cfbdd607b09d316318d104b472b7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:47.073936ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028517/publication.txt
observed e4426b30aa3089e5896bd5bc1695796c...
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.