OpenTechnical

OT-2026-000049555

Publication integrity record

Three bellows cup vacuum gripper, three zone face, three outlet manifold, 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-2026-000049555) never changes.

Identity and time

Publication numberOT-2026-000049555 · never reused
Internal UUID01a0ae81-8f7d-7b2e-9f62-a6198315d2aa · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:35:21.728203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000049555
StatusPUBLIC

Content hashes

Canonical textb02f0e299e9b38ae73d4d097f16530640420da4bb63883b8090ff51d52c9a685
Markdownef1189cd890934301db84b3c02544035e7b97fbf6b15148f69e55dc35053d449
PDF
Publication pageb83938beba1f91952b339d4b17e26a49d01386e6e4ebe4a19f65b4be56a46c12
Manifest824ff1aa0b5d0691013558bb7e6f11e30a447cfa36e318d397f3d27255df502f

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
Signaturex4Ac1B2ztIme64tdZLwDgpfqjCVodf968i63hHepNoB4prWK/Oacad5DIm99D/ShTjjyFrXO2AUFv455Fe2MAw==
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

2026-09-17T11:02:25.566317ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049555
observed b83938beba1f91952b339d4b17e26a49...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:25.542166ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049555/manifest.json
observed 824ff1aa0b5d0691013558bb7e6f11e3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:25.524133ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049555/publication.md
observed ef1189cd890934301db84b3c02544035...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:25.505644ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049555/publication.txt
observed b02f0e299e9b38ae73d4d097f1653064...
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.