OpenTechnical

OT-2026-000052868

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, single stage ejector, supply line pressure sensor, pulsed 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-2026-000052868) never changes.

Identity and time

Publication numberOT-2026-000052868 · never reused
Internal UUID01a0ae84-a42f-7738-9556-d415fdc3d818 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:38:43.524202Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000052868
StatusPUBLIC

Content hashes

Canonical texta8c8247879686f6b34fc9c8848b8106eb274138599cf2e83682ae3c1bb3d0536
Markdown2d69f9d26947032a4e8761950d1b3c36ccc9498182c9372c052051e0fc4cd495
PDF
Publication pagec37694af7a2b7b5682629e7817c1c3f2f7265d624c1d2115c7bedfa722980aa4
Manifest0df4cd6df8b48b66a8643d5cb28bcd6ce4bcbcc8433ff530793d884748e67094

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
SignatureiQG0ygrmk2/T8xm7sBz8VQpY/Jlsjdoou736UmimRJKYekbngNiT5EDaYfZYeursh/lbc8ed6Xbs2IN4RMFMAQ==
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...
timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T10:56:30.063874ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000052868
observed c37694af7a2b7b5682629e7817c1c3f2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:56:30.046136ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000052868/manifest.json
observed 0df4cd6df8b48b66a8643d5cb28bcd6c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:56:30.027441ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000052868/publication.md
observed 2d69f9d26947032a4e8761950d1b3c36...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:56:30.010893ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000052868/publication.txt
observed a8c8247879686f6b34fc9c8848b8106e...
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.