OpenTechnical

OT-2026-000103847

Publication integrity record

Three cup vacuum gripper, three zone face, per zone isolation, three stage ejector, pulsed 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-2026-000103847) never changes.

Identity and time

Publication numberOT-2026-000103847 · never reused
Internal UUID01a0aea5-15e6-7bfc-bd37-10d753e74d96 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:14:09.781581Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000103847
StatusPUBLIC

Content hashes

Canonical text8ce1f8f202d09fece74bae23e7f6f88696adc82d01124c84c7a66f4ff7d7ff84
Markdown09f972405b72d5816c788bf68e8425824668381abd1d7ca57f305c5687bed534
PDF
Publication pageadbc4fd61c1f898939ddbe84bb01e5d479832fd7349bc7bb51f8a4e93321d418
Manifest22d282fbb688bdc72a7589ee32ce0c82cc4888a9796d2cde73d179c8a902a044

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
SignatureVX3WcXq9MCFDBtUzP5sHYTUsMvUAZAfus4g8hOygciIU87NF4hX71rMHL3NyOECfABLwJhzLQBPVFWy9j4GUBA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:27:04Z
batch OT-TS-2026-W38-023 · RFC 3161 token · inclusion proof
root 095d30148a2ef87d42d7818ebe7543f9...

Independent retrieval

2026-09-17T09:21:49.589906ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103847
observed adbc4fd61c1f898939ddbe84bb01e5d4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:21:49.572515ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103847/manifest.json
observed 22d282fbb688bdc72a7589ee32ce0c82...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:21:49.553115ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103847/publication.md
observed 09f972405b72d5816c788bf68e842582...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:21:49.535134ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103847/publication.txt
observed 8ce1f8f202d09fece74bae23e7f6f886...
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.