OpenTechnical

OT-2026-000057492

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, pump fed, sustained blow-off after 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-2026-000057492) never changes.

Identity and time

Publication numberOT-2026-000057492 · never reused
Internal UUID01a0ae88-2692-71ea-9395-8a07a9a1aecc · 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-2026-000057492
StatusPUBLIC

Content hashes

Canonical textc826ba6359e8093b1259d91cbd897ee2508ebd498275482631ad53111e18ba8a
Markdown7aec3bcaca614002836a7767683065dac87ce7ece75d3951ed08625369e24b2b
PDF
Publication pagef31112d43487f6f2b84534450d6b0541eadd6df8b1381bf4b0ff1866e256e7ac
Manifest04fa169ef043bf7985189bb31ee0f3097d5707f5c2f9077e11cd5749b14d3c32

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
SignatureKS69eEnj4Uc80Y/MGWvui/p0APHampExHDM5vX1ZdPK7nProv3cMFBXEk4lloAkCB0MabUX5EAJRzjxVNhGEAA==
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

2026-09-17T10:48:00.990682ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057492
observed f31112d43487f6f2b84534450d6b0541...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:48:00.971674ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057492/manifest.json
observed 04fa169ef043bf7985189bb31ee0f309...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:48:00.955626ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057492/publication.md
observed 7aec3bcaca614002836a7767683065da...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:48:00.937714ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057492/publication.txt
observed c826ba6359e8093b1259d91cbd897ee2...
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.