OpenTechnical

OT-2026-000014819

Publication integrity record

Three cup vacuum gripper, three 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-2026-000014819) never changes.

Identity and time

Publication numberOT-2026-000014819 · never reused
Internal UUID01a0ae6d-d094-78a7-8278-28fe92d583b1 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:47.560717Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000014819
StatusPUBLIC

Content hashes

Canonical text317a78a82d337b9e6784701e262dc38510ee444062fc39e53a981a0e75fdc87e
Markdowneb96961ee39a1220efb493e46cc2bc5cac66cf4f11ded16dec59972d3b5fcce2
PDF
Publication page01b870bd2d50e0e57b74ef2dec9d1f379bb4151ddc51e603960cc0f301674c90
Manifest4419eef7fa00e6e8dd42d7a572676f2a7d337c87dd10896e6b48eabdcc917968

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
Signatureyu9zmnSKnkNS1H7I6GXKYOE6mfDAG2z5yb9Ucrvr1G46DgNLC+ivQqbQ0yeSKzYuNMrQvK/wKnMA77ZHIcneDg==
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

2026-09-17T12:06:43.223464ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000014819
observed 01b870bd2d50e0e57b74ef2dec9d1f37...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:06:43.203964ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000014819/manifest.json
observed 4419eef7fa00e6e8dd42d7a572676f2a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:06:43.185696ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000014819/publication.md
observed eb96961ee39a1220efb493e46cc2bc5c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:06:43.166441ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000014819/publication.txt
observed 317a78a82d337b9e6784701e262dc385...
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.