OpenTechnical

OT-2026-000031109

Publication integrity record

Three cup vacuum gripper, three outlet manifold, single stage ejector, pulsed blow-off after 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-2026-000031109) never changes.

Identity and time

Publication numberOT-2026-000031109 · never reused
Internal UUID01a0ae74-87aa-7b0e-9a27-849e37476f57 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:07.653052Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000031109
StatusPUBLIC

Content hashes

Canonical text83e5a9e15e14b9ebaf922928b925bd5b553ac2cc1fc21484cda0886350f9e83b
Markdown9362bf49e2d4419be1084c09e1f801f3ecc5cedb19320876f8f0510c08fa6481
PDF
Publication page2786f64b19594aa28a4a7ee9667809e2ef54adf131d8f9293cb3f6a497ab49e5
Manifest0b5191c918caadc49fc2ca3a0c62ac1bc3a685ed563706ff35923a24ff2e8b45

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
SignaturetLuOnkRCz3zKx2cA52F/6GHbFlEG6TXhGk688okdWht1mjVLWZj7x9vBMaI8yrC06f5XwstQ0mYC+Uh2r41SDw==
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

2026-09-17T11:35:32.395927ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031109
observed 2786f64b19594aa28a4a7ee9667809e2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:32.377217ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031109/manifest.json
observed 0b5191c918caadc49fc2ca3a0c62ac1b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:32.359937ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031109/publication.md
observed 9362bf49e2d4419be1084c09e1f801f3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:32.342099ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031109/publication.txt
observed 83e5a9e15e14b9ebaf922928b925bd5b...
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.