OpenTechnical

OT-2026-000007496

Publication integrity record

Vacuum cup gripper, common isolation valve, plant vacuum fed, contact triggered, silicone cups, oval form

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-2026-000007496) never changes.

Identity and time

Publication numberOT-2026-000007496 · never reused
Internal UUID01a0a980-f108-745d-b86a-cd738ee0acb8 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T09:16:34.955032Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000007496
StatusPUBLIC

Content hashes

Canonical text16312b43673310759cc936c49b218c3038583938fd32a82218c5bce37d61c5e3
Markdown02e5a4d3932b127fa3de4f5f86b06207986b8d19c5f1938c37a4d01de7edae69
PDF
Publication page7c50152825df6fab91b18570f444e1a9ce9b019690e808789150eae231d0f0d6
Manifest0d8a4e340dd674cbd9b4d7709169d5d82b8099929598a9ed59c1f61c3e6bb5fb

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
Signature1qbq8bdQwgYYgqhRGBrGyafuqB1ePyXPu93cWMbQM+EJt4S+y4LmkLZGYj9WLMRrQzDgCDO8tsOSXnzFQ8mvDg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T09:20:33Z
batch OT-TS-2026-W38-015 · RFC 3161 token · inclusion proof
root 07bfbe2fb3517c1c41f239fb2e682fbe...

Independent retrieval

2026-09-16T09:20:02.089898ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007496
observed 7c50152825df6fab91b18570f444e1a9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:20:02.076546ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007496/manifest.json
observed 0d8a4e340dd674cbd9b4d7709169d5d8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:20:02.064919ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007496/publication.md
observed 02e5a4d3932b127fa3de4f5f86b06207...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:20:02.049779ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007496/publication.txt
observed 16312b43673310759cc936c49b218c30...
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.