OpenTechnical

OT-2026-000080331

Publication integrity record

Three cup vacuum gripper, three zone face, per zone isolation, pump fed, 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-2026-000080331) never changes.

Identity and time

Publication numberOT-2026-000080331 · never reused
Internal UUID01a0ae96-7e77-7cac-bd81-4f0964f2f1df · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:13.512436Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000080331
StatusPUBLIC

Content hashes

Canonical textde75513247230cc39c6598c916c1cc732ec7da382a95768aa7d2fa61a1711fe5
Markdown0bc778c5d42bd4d3d56b0b9cd96971bb790b3a1b6f9b49f8f5359189cec7ea06
PDF
Publication page11979616278ec38900c8e0276fb406e0c0e2355c4f61343700978e686b66b048
Manifestac574a891a6bf3330f0829f18d5dc1be8319bf6053e3a41ef2c4e0d2431015a4

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
SignatureDuJo6w+eYLsyZKUzBdSrvTRkyMWpZhn/C4S+HXW66MDl0h1TQNPoHNC1exQ2vNlVuxCLMoLww5o4jOoR6l3HCA==
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

2026-09-17T10:02:48.469290ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080331
observed 11979616278ec38900c8e0276fb406e0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:48.451609ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080331/manifest.json
observed ac574a891a6bf3330f0829f18d5dc1be...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:48.432415ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080331/publication.md
observed 0bc778c5d42bd4d3d56b0b9cd96971bb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:48.413511ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080331/publication.txt
observed de75513247230cc39c6598c916c1cc73...
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.