OpenTechnical

OT-2026-000049507

Publication integrity record

Foam pad vacuum gripper, two zone face, three outlet manifold, pump fed, pressure sensor per zone, 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-2026-000049507) never changes.

Identity and time

Publication numberOT-2026-000049507 · never reused
Internal UUID01a0ae81-8f7c-7852-a6f1-b2a0a2889d88 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:35:21.728203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000049507
StatusPUBLIC

Content hashes

Canonical textf593a25e4d6a8cd91da7345e00671f7c7d6eddc5c5ace76ad2eb886e5df9a007
Markdown3b3f56159851397091a5bf971f0ddd203b363f5c11732acec79bce7709501785
PDF
Publication page49da74c062b34fcbcd28acfb3294e6eae4938f44e4e614c24ebc6d71a512de23
Manifest0fd3d3a93ad3fd357ff72c7908671b4b567b32e8894f47decf9c4a8601a27281

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
SignatureJuQikGMb9ejtYV72VGgzXN6zYPUi2+dJbg/swV2EKEZ+6IW2LjlfkKNoR9hXBU4h/jz854XWBRmkS9VEAGu1DQ==
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

2026-09-17T11:02:21.720064ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049507
observed 49da74c062b34fcbcd28acfb3294e6ea...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:21.700546ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049507/manifest.json
observed 0fd3d3a93ad3fd357ff72c7908671b4b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:21.683261ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049507/publication.md
observed 3b3f56159851397091a5bf971f0ddd20...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:21.666256ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049507/publication.txt
observed f593a25e4d6a8cd91da7345e00671f7c...
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.