OpenTechnical

OT-2026-000041992

Publication integrity record

Six bellows cup vacuum gripper, six outlet manifold, plant vacuum fed, 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-2026-000041992) never changes.

Identity and time

Publication numberOT-2026-000041992 · never reused
Internal UUID01a0ae79-e8a7-7d5f-a25b-4727a8003543 · 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-2026-000041992
StatusPUBLIC

Content hashes

Canonical text7b9e2d41c8fe998ebab4086aaf57805e4ca977ca460172fabdd6c514607a4c6b
Markdown9a762ce97e56912fd8a1f18e64f6dd4e3185caf7f3298d9bc488566042fbd6c8
PDF
Publication pagef09b57c6234fa3557979d4ca99603b58990cfa52165ca517977a50857892a66a
Manifested95f08559476a89afdc4b0d528da22aed542f0ff463558f4667a698d9c6b5c7

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
SignaturexUzh3/fcJ6Ql/55bWiLy2jY3rfOIixo8nFSOaByGsuAzwPsq5d+x+tNUdFaiGwOGgQ5qkayYjWR4rGaa5z8iDA==
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

2026-09-17T11:16:53.321734ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041992
observed f09b57c6234fa3557979d4ca99603b58...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:53.304645ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041992/manifest.json
observed ed95f08559476a89afdc4b0d528da22a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:53.287492ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041992/publication.md
observed 9a762ce97e56912fd8a1f18e64f6dd4e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:53.270159ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041992/publication.txt
observed 7b9e2d41c8fe998ebab4086aaf57805e...
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.