OpenTechnical

OT-2026-000023013

Publication integrity record

Four cup vacuum gripper, four outlet manifold, plant vacuum fed, 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-2026-000023013) never changes.

Identity and time

Publication numberOT-2026-000023013 · never reused
Internal UUID01a0ae70-46ec-7b40-8a0e-565ba4389a71 · 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-2026-000023013
StatusPUBLIC

Content hashes

Canonical text2b59b9ecfa8f892a87f48a14b72aba699df2fb544592bf7957ec429dbe8f69c5
Markdownce04e403480749ee3a4713ddc28a8899aaf50aef6e9d0b644da6f6702077076f
PDF
Publication page4ab81f2ce108e32e768099225c0d8835efe4467ee86733d9a91d60d22c847fce
Manifest4dd7466b97a3d67ced99fbb04a4354435a23eab523a41a672a74eaac024c17c0

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
SignatureXJRz0vOh63twBezhfYfUnVSIi2OQsLIySM+OiVYfUmJIjea7I8iNM2lgZAuSSrljZomsZ6z+zIHiJ7NuVHofBg==
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

2026-09-17T11:52:36.570898ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023013
observed 4ab81f2ce108e32e768099225c0d8835...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:36.553533ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023013/manifest.json
observed 4dd7466b97a3d67ced99fbb04a435443...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:36.536951ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023013/publication.md
observed ce04e403480749ee3a4713ddc28a8899...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:36.519109ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023013/publication.txt
observed 2b59b9ecfa8f892a87f48a14b72aba69...
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.