OpenTechnical

OT-2026-000015208

Publication integrity record

Single bellows cup vacuum gripper, single stage ejector, 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-2026-000015208) never changes.

Identity and time

Publication numberOT-2026-000015208 · never reused
Internal UUID01a0ae6d-ef48-7307-b066-88e80061de48 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:55.421510Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000015208
StatusPUBLIC

Content hashes

Canonical text8ebd66c426060218f25bcda8036d0c1499cf9b6a8e21d92c25d29aa5d226f4e2
Markdowne9c91a577b82fc6314b9e0d5bb5c7332ffa90cb0038b69fcded3b86bc3b10b4b
PDF
Publication pagefe385511f000906e13938f809929aa64758866ea2aa7f966a1cf2ee60e9680f8
Manifest37c9846b2fdd364c855cee2532e88c396692ba7cd8a40ed495731daa0600072e

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
SignaturelVxMLw0Agg2+oiRo7UIKkdJxTo9ZSV7nFwTYEPVy50yWr1TB/BMDAHrkuPsqwnVDGF5z8cB2PhAV58KNCqRnAg==
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

2026-09-17T12:05:50.498501ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015208
observed fe385511f000906e13938f809929aa64...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:05:50.477867ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015208/manifest.json
observed 37c9846b2fdd364c855cee2532e88c39...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:05:50.457957ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015208/publication.md
observed e9c91a577b82fc6314b9e0d5bb5c7332...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:05:50.437439ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015208/publication.txt
observed 8ebd66c426060218f25bcda8036d0c14...
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.