OpenTechnical

OT-2026-000043717

Publication integrity record

Four 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-2026-000043717) never changes.

Identity and time

Publication numberOT-2026-000043717 · never reused
Internal UUID01a0ae7b-92d1-7631-a95f-0b18aa20f2de · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:28:49.254972Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000043717
StatusPUBLIC

Content hashes

Canonical text26fc39afec2a0cbcec1eb4f1d7af6fc47f6e91a859e454cb317d08c46450b6d4
Markdown8dc0273a6810d02e1cab22ed5c34f900bbacb437f991488916bf8a1c1693b125
PDF
Publication page5890d5266537751d62683537a3b83ab79e9ff7b2c84473fd3582180c272b9d97
Manifest3179c8b2880676312f5546e2f85a02abf5f0acf625b40791da0f92ed600fc35c

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
SignaturezpKObcaCn7zt+M5paDlf4jL/wZf8ioHQUjOfohl4+eAn2x0WBj6m65FWQ1GHFyu4PbKIxdmyNeWmhfVmVNWcAw==
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

2026-09-17T11:13:13.073464ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043717
observed 5890d5266537751d62683537a3b83ab7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:13.054810ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043717/manifest.json
observed 3179c8b2880676312f5546e2f85a02ab...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:13.034609ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043717/publication.md
observed 8dc0273a6810d02e1cab22ed5c34f900...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:13.015484ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043717/publication.txt
observed 26fc39afec2a0cbcec1eb4f1d7af6fc4...
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.