OpenTechnical

OT-2026-000011541

Publication integrity record

Three cup vacuum gripper, three zone face, per zone isolation, pump fed, vented after 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-2026-000011541) never changes.

Identity and time

Publication numberOT-2026-000011541 · never reused
Internal UUID01a0ae6c-88ff-7467-824b-5aee5ceab9bf · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:12:23.703080Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000011541
StatusPUBLIC

Content hashes

Canonical text4945a9605f6c277fce39eae8e022f9a9fdda3f531977490dac28e5ac4ec7a1da
Markdown01dfa49893b943c6315d0db0a03248f0b74e957473e2a5e08d82a859f3e02194
PDF
Publication page1162f6a0f4d2614cfe1687307577f6184f34c191d3e493d93357dc117896e177
Manifest4a6058dbc462a4e8fdb433850e28e30adbb1ab3a75d17567bf7910c6bf73f16f

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
Signature1qL1sRk0e5SK1s7A8HIu8OHFNJ6J7kiyQk/PqaSesRKss1hFo2wfgcjRWP0EI43DB0D6cUDOodnlNRfyEeHABQ==
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

2026-09-17T12:13:19.917447ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011541
observed 1162f6a0f4d2614cfe1687307577f618...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:13:19.898086ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011541/manifest.json
observed 4a6058dbc462a4e8fdb433850e28e30a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:13:19.880229ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011541/publication.md
observed 01dfa49893b943c6315d0db0a03248f0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:13:19.861506ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011541/publication.txt
observed 4945a9605f6c277fce39eae8e022f9a9...
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.