OpenTechnical

OT-2026-000099833

Publication integrity record

Three cup vacuum gripper, three zone face, pump fed, pressure sensor per zone, sustained 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-2026-000099833) never changes.

Identity and time

Publication numberOT-2026-000099833 · never reused
Internal UUID01a0aea2-c978-7f98-86d3-469d78739988 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:11:39.138466Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000099833
StatusPUBLIC

Content hashes

Canonical text0b09cd329ba022d998e0a14c70c854767b0b5751354e91b66fa2bbd3b33facc9
Markdown24f743cae5e8edbbdde702845228a539864085c9b586838faf458a6f144a26b0
PDF
Publication pagebc5f38a6f82fa35412ecd2cac502ea37edabb7db8ce95a8905e72a4073652dc2
Manifestbafb2c1da9cfd572c3fefba59477492123419a8323144c6dc23af3c3944f8d96

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
SignatureSPrLUkUyoc21BHJ+A+nzR/Y75TvinQw7wi8C94gr2R1AshrmKf+I1PufQqUMR+egmmg9xonfmNg5wjvxfXGWAA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:27:04Z
batch OT-TS-2026-W38-023 · RFC 3161 token · inclusion proof
root 095d30148a2ef87d42d7818ebe7543f9...

Independent retrieval

2026-09-17T09:29:52.314880ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000099833
observed bc5f38a6f82fa35412ecd2cac502ea37...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:29:52.298207ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000099833/manifest.json
observed bafb2c1da9cfd572c3fefba594774921...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:29:52.283043ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000099833/publication.md
observed 24f743cae5e8edbbdde702845228a539...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:29:52.267506ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000099833/publication.txt
observed 0b09cd329ba022d998e0a14c70c85476...
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.