OpenTechnical

OT-2026-000018499

Publication integrity record

Three cup vacuum gripper, three zone face, six outlet manifold, 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-2026-000018499) never changes.

Identity and time

Publication numberOT-2026-000018499 · never reused
Internal UUID01a0ae6e-b48a-707a-aba6-a77b73edaae1 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:14:45.971508Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000018499
StatusPUBLIC

Content hashes

Canonical text47027df2a3591a4d71d9a35ec1fc4a80aed13171dd31d6e802a1aeaa4447dcdd
Markdownd491c9c7a2fbb6dfad7c711fff6b2a7928a6140b03ff678b98303033dbdfadcd
PDF
Publication page8daa4418940689dd636d7074f430173d219c5b4ba71f18507306db1c489b73a1
Manifest44d38d35df40bb9a8cd3835c5c81959a61b6154bc60f162fbb7228efa6e2bd21

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
SignatureVyiayIxEv14wdMsfDAlyPiSjRkoQfBIs/q84zYKgUQ7HxRx5TA7pS1ZiuCl0x2gSg2mEcVljUcSgLvJVxwX4CA==
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

2026-09-17T11:59:49.661257ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018499
observed 8daa4418940689dd636d7074f430173d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:49.641926ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018499/manifest.json
observed 44d38d35df40bb9a8cd3835c5c81959a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:49.623873ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018499/publication.md
observed d491c9c7a2fbb6dfad7c711fff6b2a79...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:49.604809ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018499/publication.txt
observed 47027df2a3591a4d71d9a35ec1fc4a80...
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

OT-CUSTODY-2026-W38OpenTechnical-Custody-2026-W38.tar.zst
f2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent