OpenTechnical

OT-2026-000041669

Publication integrity record

Single cup vacuum gripper, 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-2026-000041669) never changes.

Identity and time

Publication numberOT-2026-000041669 · never reused
Internal UUID01a0ae79-e8a0-7713-919a-a8a8da06b8a8 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:27:00.220789Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000041669
StatusPUBLIC

Content hashes

Canonical text5cb0874e715332b0b41a97e0a4af58522771bb7827c52d3a64eee8617a5a6e5f
Markdown7cf562fc6c28b846f3d5844ef28a3c3d2dd803fbfc07e03722c87c774e546408
PDF
Publication pageaa5b2e015cbc3215b976a06f1b93a35e3d9524f5e364d6d131199662e3a10ca6
Manifestee9d7f4a338f91cf9fb87f51956b8fe602bfc08b591d8f6c3a0ddea320f959a0

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
Signaturemju2LvgOQr20kmgRJ52k1pgAEVVC3Z6QEED2dhbng1Urf8pc5tyAAYl8I3CTgZzujNXuJyzjskqEOJ3XSFh4AA==
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

2026-09-17T11:16:28.479929ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041669
observed aa5b2e015cbc3215b976a06f1b93a35e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:28.463063ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041669/manifest.json
observed ee9d7f4a338f91cf9fb87f51956b8fe6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:28.445602ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041669/publication.md
observed 7cf562fc6c28b846f3d5844ef28a3c3d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:28.427546ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041669/publication.txt
observed 5cb0874e715332b0b41a97e0a4af5852...
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.