OpenTechnical

OT-2026-000057557

Publication integrity record

Single cup vacuum gripper, plant vacuum fed, supply line pressure sensor, vented before set-down

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-2026-000057557) never changes.

Identity and time

Publication numberOT-2026-000057557 · never reused
Internal UUID01a0ae88-2693-7ee4-bce0-c89365611fb5 · 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-2026-000057557
StatusPUBLIC

Content hashes

Canonical textc9ec3db91c0b373606e798f9a628622895a446c97764b4f115b53c93f2622b56
Markdown29e15c4fd82af7ab54ab5d498c118f37c83dfbc4f95ab337567ae55bf387aab2
PDF
Publication page9ae63d3ad34c04b0a51460d0be739befa276cc0905255dc1e9b93734b1739d58
Manifestcbb6ee3aab7e6ac0cb118b2ccb841a5d4d91321a26aa077643ded1a5eb682457

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
SignaturepmreEDBwrFfCJHiogD5q22CnImGdIPSKKz3vlvedGqR24eLaRj1Ffy4llKD07XdnFdKnCgQZUCSEDOPceN7VAw==
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

2026-09-17T10:47:58.727841ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057557
observed 9ae63d3ad34c04b0a51460d0be739bef...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:58.707875ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057557/manifest.json
observed cbb6ee3aab7e6ac0cb118b2ccb841a5d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:58.680978ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057557/publication.md
observed 29e15c4fd82af7ab54ab5d498c118f37...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:58.568191ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057557/publication.txt
observed c9ec3db91c0b373606e798f9a6286228...
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.