OpenTechnical

OT-2026-000057602

Publication integrity record

Four pad foam vacuum gripper, four outlet manifold, pump fed, manifold pressure sensor, 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-2026-000057602) never changes.

Identity and time

Publication numberOT-2026-000057602 · never reused
Internal UUID01a0ae88-2694-710f-9ead-e2961bce2c09 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:42:33.513637Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000057602
StatusPUBLIC

Content hashes

Canonical text94fc91e5ed627904f6ab7bf9718bff78f035ccd709b3e03e587d0b308bdd6c0d
Markdown52614eb35401f2aaa9c2449cce312bb5fc493e64108523c8d3dca55f98099f51
PDF
Publication page0082eb5ce97246a5dc9675fc9cfa9efe5d8b7fa02a40575148804df2ad9f6acc
Manifest7f610550479a15d82d53ade956c46b6743b6d5f928b09945669cb9e43b377ec7

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
SignatureiBKGVZgLXN5wUrod0+6Qqy06iiiOYujxbqhuaLvXSXDnVeNATn5ijt8F0bUN0eQy9+gM2e/0KF7bAxDZiMgODA==
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...

Independent retrieval

2026-09-17T10:48:09.314215ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057602
observed 0082eb5ce97246a5dc9675fc9cfa9efe...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:48:09.294276ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057602/manifest.json
observed 7f610550479a15d82d53ade956c46b67...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:48:09.273778ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057602/publication.md
observed 52614eb35401f2aaa9c2449cce312bb5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:48:09.254737ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057602/publication.txt
observed 94fc91e5ed627904f6ab7bf9718bff78...
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.