OpenTechnical

OT-2026-000052702

Publication integrity record

Four pad foam vacuum gripper, four outlet manifold, common isolation valve, pump fed, vented 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-2026-000052702) never changes.

Identity and time

Publication numberOT-2026-000052702 · never reused
Internal UUID01a0ae84-a42d-7a4a-9322-333f56b7735f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:38:43.524202Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000052702
StatusPUBLIC

Content hashes

Canonical textcd07dec48566aa12c16f0213d60bafdccb0cee6314ef63829299d255325a758b
Markdown46bd9a1622a1d4e8431c6c0bd376c51b51b07f03fcb39720e3d6ad7ed82bf007
PDF
Publication page1b45fbff5d7862ced1df459545c94b6cc80582f2efd20f070e4a2ada5f2a38bf
Manifest46bbb6d5326d4f106bda625bd618359a90a57e07e8996ad43418148d3b0134cc

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
SignatureUe40c4k4NIJwjAQmMSVy7QLyp27M+8NQLQRrRkGZC1gTtUf+GCSEm/eh+ZD1Tf1HoOwdL7Ou78utpieemchtDQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...
timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T10:55:41.261663ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000052702
observed 1b45fbff5d7862ced1df459545c94b6c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:55:41.243824ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000052702/manifest.json
observed 46bbb6d5326d4f106bda625bd618359a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:55:41.223603ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000052702/publication.md
observed 46bd9a1622a1d4e8431c6c0bd376c51b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:55:41.205615ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000052702/publication.txt
observed cd07dec48566aa12c16f0213d60bafdc...
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.