OpenTechnical

OT-2026-000091989

Publication integrity record

Three cup vacuum gripper, three zone face, six outlet manifold, plant vacuum fed, pressure sensor per zone, 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-2026-000091989) never changes.

Identity and time

Publication numberOT-2026-000091989 · never reused
Internal UUID01a0ae9d-43bb-7c62-8481-c97bca6edd95 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:37.256105Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091989
StatusPUBLIC

Content hashes

Canonical text98d8596bfa8012f9eeaaf2d122a8fe523dc4de7c6857c75c4db6845ae259bc1f
Markdown2875fcc9d6b0e820c1d7f6d297ac7f7a5aa00342e4da2756312217965feedb69
PDF
Publication page3aa35861247ccedebb5f6ae64ab329247e85df2b977b93bb0f7f474366aba1c9
Manifest13ed471bbfc265c7ec0816e2c9c8704bc82873c9214caba412675b6f2dca3a58

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
SignaturevspMURWx1TT/Xn5G5Q0lEIjgTMPbCbM3a+xwcYdnZhbrF/LrAx25cXHmZu4ji5NrVzCgUKkprdy5ffhrhDVmDA==
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

2026-09-17T09:42:54.001238ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091989
observed 3aa35861247ccedebb5f6ae64ab32924...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:53.984405ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091989/manifest.json
observed 13ed471bbfc265c7ec0816e2c9c8704b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:53.967637ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091989/publication.md
observed 2875fcc9d6b0e820c1d7f6d297ac7f7a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:53.938103ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091989/publication.txt
observed 98d8596bfa8012f9eeaaf2d122a8fe52...
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.