OpenTechnical

OT-2026-000049907

Publication integrity record

Three bellows cup vacuum gripper, three zone face, three outlet manifold, pump fed, 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-2026-000049907) never changes.

Identity and time

Publication numberOT-2026-000049907 · never reused
Internal UUID01a0ae81-fd76-75ca-9522-444feee3e040 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:35:49.774136Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000049907
StatusPUBLIC

Content hashes

Canonical text8d09f3e4828279b2ff38175117f2b99094b1b20d531711f539bb8503e3310763
Markdownba08fa20808e62c3a830823582207e8ec80644a168692df79f0f51e0ba76b535
PDF
Publication page97dbdb3b2472d7578dd50631d2a4459ec5663202d82bfe69f7fc3567f895c1f4
Manifestb3ead3f1f3275ccf1a2b365bbc139e89dbccc91f2f3dcb067d8892ad3a832c4f

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
SignatureIpL9m/tHoTJvK/bCdX3RM2l8n3G4uXDdej7Ctd6D4WXuOur5N2v17pMV4fVozPrmraUYyDQ7xGsJf7x75MfeDg==
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

2026-09-17T11:01:49.784753ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049907
observed 97dbdb3b2472d7578dd50631d2a4459e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:49.744308ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049907/manifest.json
observed b3ead3f1f3275ccf1a2b365bbc139e89...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:49.725276ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049907/publication.md
observed ba08fa20808e62c3a830823582207e8e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:49.688105ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049907/publication.txt
observed 8d09f3e4828279b2ff38175117f2b990...
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.