OpenTechnical

OT-2026-000012055

Publication integrity record

Two cup vacuum gripper, two zone face, 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-2026-000012055) never changes.

Identity and time

Publication numberOT-2026-000012055 · never reused
Internal UUID01a0ae6d-1943-751a-a561-8bf467d655c3 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:00.631271Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000012055
StatusPUBLIC

Content hashes

Canonical textc474e20be79022c001d86b43ff958053a5a241fd808ef97b76ec09f5cc787bc0
Markdownd26dee98898911b9f939e6630922e9cb8671f21f50a9b06a17554af0fbeec5ed
PDF
Publication page5858d93fb422cde5135c61e40cb77b793137704de433e43d4d33feb00dfacaba
Manifeste5a6e172fc2c7ca7c7f89a4b5455db97402868f9bfb6dd1cd1352a8daa26e76b

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
SignatureEza56p8k1eB2cc3uKhv65Q4BQ3InAgBUecUR0/KZyzLHfzYew1MiUFvmuTEBVCyWJowxNBI3wRb/F05EZI6dAg==
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

2026-09-17T12:12:56.112894ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012055
observed 5858d93fb422cde5135c61e40cb77b79...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:56.092772ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012055/manifest.json
observed e5a6e172fc2c7ca7c7f89a4b5455db97...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:56.071047ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012055/publication.md
observed d26dee98898911b9f939e6630922e9cb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:56.051378ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012055/publication.txt
observed c474e20be79022c001d86b43ff958053...
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.