OpenTechnical

OT-2026-000042391

Publication integrity record

Three bellows cup vacuum gripper, three zone face, three outlet manifold, pump fed, manifold pressure sensor, 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-2026-000042391) never changes.

Identity and time

Publication numberOT-2026-000042391 · never reused
Internal UUID01a0ae7a-5d74-7894-bbb0-fd40af61cfb0 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:27:30.052779Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000042391
StatusPUBLIC

Content hashes

Canonical text36f278eb0553276061c2ea9da85fede15b6ef11623a22ea2c4a8cc3a112642ff
Markdown5a2ffab12a95e25ad129d1417d950dc736d5aee66a0c3c1ec9b4e3a98e4a7bab
PDF
Publication paged9b6bd0c219616c8d0a066fe420c18d19da7b13c78b212c848b7b6d0a6e78017
Manifesteec594139bd8265badc94d622a473e8b1d29a918a42b187e310247936f550c6b

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
SignatureK6vkbYgVrj7z3KyDk2y4phEbsBz25bPWwmCywZ4RYlXo+HkBlXiIN2KLHb3TQiX1FNlcnC/59GbLWKrm92HjAA==
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

2026-09-17T11:16:11.076291ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042391
observed d9b6bd0c219616c8d0a066fe420c18d1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:11.060329ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042391/manifest.json
observed eec594139bd8265badc94d622a473e8b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:11.044276ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042391/publication.md
observed 5a2ffab12a95e25ad129d1417d950dc7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:11.027675ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042391/publication.txt
observed 36f278eb0553276061c2ea9da85fede1...
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.