OpenTechnical

OT-2026-000057949

Publication integrity record

Four cup vacuum gripper, four outlet manifold, single stage ejector, supply line 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-2026-000057949) never changes.

Identity and time

Publication numberOT-2026-000057949 · never reused
Internal UUID01a0ae88-6ed9-7aaa-ad83-e65eecac3e99 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:42:52.020108Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000057949
StatusPUBLIC

Content hashes

Canonical textc99f3f57f4ffd1ac2f3571be55fa80e2f5b814fe6a7946f5ee7cca2fbd96032d
Markdown4aaadb44776a32c0aa8a57a7a476b6743bf23d3197bccde055a3bf9519498439
PDF
Publication page2a2dc0ea726fd7102b9f103d2512e0ca5519a037f01d50ab3cf912065fbf6c0c
Manifest19666fe98bab3d538ba9a3dffc36f9333c7f7c8c1e72d438026c69469e670e36

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
Signatureb4EVuA/vW5T4iaeOT7NpEnMWJyyIIdNX7IwjoL7Ym9yKzkSk3ZtXIyUSdZF+z9iQf9F2xP7Am+y4oFu3LYQ2Bg==
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

2026-09-17T10:47:33.924701ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057949
observed 2a2dc0ea726fd7102b9f103d2512e0ca...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:33.907416ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057949/manifest.json
observed 19666fe98bab3d538ba9a3dffc36f933...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:33.888517ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057949/publication.md
observed 4aaadb44776a32c0aa8a57a7a476b674...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:33.869349ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057949/publication.txt
observed c99f3f57f4ffd1ac2f3571be55fa80e2...
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.