OpenTechnical

OT-2026-000017749

Publication integrity record

Four cup vacuum gripper, four outlet manifold, pump fed, supply line pressure sensor, 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-2026-000017749) never changes.

Identity and time

Publication numberOT-2026-000017749 · never reused
Internal UUID01a0ae6e-96fa-7f58-a9f9-d3eb12975d47 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:14:38.350302Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000017749
StatusPUBLIC

Content hashes

Canonical text5c6f4d1cdba0d356cd20616c56cc03257d6440cb704632822707de04e98b0b87
Markdownbf62226878089e439c99e99434d4f52a56cd74a05be7cbaf56ee31f46fed8b9a
PDF
Publication pagec786229a20da5ebffbbd6f9773ac1f14afa12b1082cc8ed01018108f21a39a3c
Manifestfdf214edc93f7adea82d91e8e4b00996003f0fef6f1b81fcce8bc0806a2c1b65

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
SignatureaYebP1eXibGbU98kMri6mhEJ03V517m9HDPcZkiIhSWWSBmuFbvUixvoAWS3egnyrv3SDW2zz9P5ir87J90yAg==
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

2026-09-17T12:01:42.230373ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017749
observed c786229a20da5ebffbbd6f9773ac1f14...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:01:42.214644ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017749/manifest.json
observed fdf214edc93f7adea82d91e8e4b00996...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:01:42.199093ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017749/publication.md
observed bf62226878089e439c99e99434d4f52a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:01:42.183326ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017749/publication.txt
observed 5c6f4d1cdba0d356cd20616c56cc0325...
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.