OpenTechnical

OT-2026-000090855

Publication integrity record

Four cup vacuum gripper, four zone face, per zone isolation, pump fed, pressure sensor per zone, 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-2026-000090855) never changes.

Identity and time

Publication numberOT-2026-000090855 · never reused
Internal UUID01a0ae9c-c010-7bd4-8804-2620b138d20c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:03.518217Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090855
StatusPUBLIC

Content hashes

Canonical textee3dbd1baa7cbe73da9bb514b6bba70e25d185295cb8ad74dcd61a44d4568e91
Markdown8a5061f451372c43881db07e4d0538a6f940b7d7902db8e9184acf37841c5a20
PDF
Publication pagead3b92db0994340e29a1bde8e4556f32cad37a32e860db70799d9097c5df11d9
Manifestb37a1b633b8c63a16a6525a294c030558d9b205803b8d1bd16f959ddd081799c

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
SignatureTfYoIhZglEn2woxx8i5r2bFtPPwafdLRE9twuKkmQ3BdURNP90Bk8QZxmXUzFJus11CeXFCGJmtO278gWnePAw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T09:44:02.742530ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090855
observed ad3b92db0994340e29a1bde8e4556f32...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:02.724998ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090855/manifest.json
observed b37a1b633b8c63a16a6525a294c03055...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:02.705440ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090855/publication.md
observed 8a5061f451372c43881db07e4d0538a6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:02.686671ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090855/publication.txt
observed ee3dbd1baa7cbe73da9bb514b6bba70e...
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.