OpenTechnical

OT-2026-000033215

Publication integrity record

Three bellows cup vacuum gripper, three zone face, six outlet manifold, pump fed, 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-2026-000033215) never changes.

Identity and time

Publication numberOT-2026-000033215 · never reused
Internal UUID01a0ae75-4844-7635-acf7-fe33644740ba · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:57.065765Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000033215
StatusPUBLIC

Content hashes

Canonical textcd080936eb1e60e4be4e051da7b39a1f79f28db668c77ad768ff23a13a7180cd
Markdown93a27cb6ef7120e82116aacb8f472a7d2f9ca541ff56a812d264916def5121c3
PDF
Publication page01abcb2a6f4938727d8138bd7eabb85d430e3da356de839cd11485b6ddcf3903
Manifeste6a4062cf188345a4a958a1dc2f8e0fda0bcb04f97fc14999c80936cf4a1e1f7

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
SignatureuSB0LD1hlE0jz4wFRKgyDEiSeYso6g5tV1UZejejjsH6uXsrufltKj9nxyw1ee4x6onzHmNbw+DeODwyeyJ+Ag==
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

2026-09-17T11:32:55.058912ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033215
observed 01abcb2a6f4938727d8138bd7eabb85d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:32:55.038741ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033215/manifest.json
observed e6a4062cf188345a4a958a1dc2f8e0fd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:32:55.021363ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033215/publication.md
observed 93a27cb6ef7120e82116aacb8f472a7d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:32:55.002726ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033215/publication.txt
observed cd080936eb1e60e4be4e051da7b39a1f...
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.