OpenTechnical

OT-2026-000081013

Publication integrity record

Foam pad vacuum gripper, three zone face, common isolation valve, pump fed, sustained blow-off 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-2026-000081013) never changes.

Identity and time

Publication numberOT-2026-000081013 · never reused
Internal UUID01a0ae96-b976-7104-a070-e3d4b5315e17 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:28.739380Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081013
StatusPUBLIC

Content hashes

Canonical text5124769e9c9b4d293147889bc6f893b2fee416c061b02641f43d1850bee87434
Markdown8f5bc2397ee5740ff2b702bed45297e8cb019a87e367b74c2363b266b0c5979c
PDF
Publication pageeb23bc8608499cc4392088536be8464aa532cf5e3e1abc2c4b3b5935f6389d5c
Manifest5f993c9e4f0b6f3bcba803c9d09c9603b36616a6e3d73b2b4afb4b30d4809038

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
SignatureBsQHruwjk6RnOCleYAlvQaMUIg724+fTy8iCZbY9FwGyVDNri6UgARHLfrZC1hk44yvPAmQ9/kUaFXInd6jwAQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:02:18.128252ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081013
observed eb23bc8608499cc4392088536be8464a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:18.110468ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081013/manifest.json
observed 5f993c9e4f0b6f3bcba803c9d09c9603...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:18.093292ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081013/publication.md
observed 8f5bc2397ee5740ff2b702bed45297e8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:18.076493ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081013/publication.txt
observed 5124769e9c9b4d293147889bc6f893b2...
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.