OpenTechnical

OT-2026-000022727

Publication integrity record

Four cup vacuum gripper, four zone face, common isolation valve, plant vacuum 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-2026-000022727) never changes.

Identity and time

Publication numberOT-2026-000022727 · never reused
Internal UUID01a0ae70-46e9-7522-90e7-b6548869e329 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:16:28.929798Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000022727
StatusPUBLIC

Content hashes

Canonical text656a2c66696344ff986598636ae1f4ff30b54afaf31571cbb962adfbad5320cf
Markdown9b68f8090f2dde142d40c0ee15d3803800446abc31e8cae45808c80223f5d440
PDF
Publication page721eb2b9f517dddac248c70154100100c89d8acad8d0ad3fcdaabf48c27f85d1
Manifestcd8cfe66faa027ef8614a0ed8e1a6db5d20e53f0fe2f504ffadbd8a6c6914308

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
SignatureFyGZuCf6KDbq5SJqVwkTI7TS8dMJZFPDp5ZptJCgvuAzv7odinTZdJ7aYDYxSr39FQMfskU58dbPmCQwuqBBBQ==
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

2026-09-17T11:52:13.818801ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022727
observed 721eb2b9f517dddac248c70154100100...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:13.801768ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022727/manifest.json
observed cd8cfe66faa027ef8614a0ed8e1a6db5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:13.783620ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022727/publication.md
observed 9b68f8090f2dde142d40c0ee15d38038...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:13.766598ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022727/publication.txt
observed 656a2c66696344ff986598636ae1f4ff...
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.