OpenTechnical

OT-2026-000021717

Publication integrity record

Four cup vacuum gripper, four outlet manifold, plant vacuum 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-2026-000021717) never changes.

Identity and time

Publication numberOT-2026-000021717 · never reused
Internal UUID01a0ae6f-bb59-7df1-a739-09570cea171c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:53.201585Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000021717
StatusPUBLIC

Content hashes

Canonical text06886725b4e48ae9042d695ace38bd5ba2218d5772d7ac7f0e61ec3fdea3ebf1
Markdown5ce9e33fbd333759aab1608a56ada31188b761f8f2f397944b146ed04b4558db
PDF
Publication pageba6253997589062b890c3db80d9cd6ca732658614d3fb6869094476113d0014f
Manifestb494bbb58474a7acc097a8be3f71f4615e5fd453df509d5d2fa74a43e6ac08ae

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
Signature7teheL7Dc5iGwYtUZDDWHBmeHXumLFoE2CaQMCOUOEgoQQ6XM5bzTaFZ42qIugJkNUbuOV/dfYPntYtsZM9eCw==
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

2026-09-17T11:54:15.465414ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021717
observed ba6253997589062b890c3db80d9cd6ca...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:15.447625ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021717/manifest.json
observed b494bbb58474a7acc097a8be3f71f461...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:15.424400ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021717/publication.md
observed 5ce9e33fbd333759aab1608a56ada311...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:15.396715ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021717/publication.txt
observed 06886725b4e48ae9042d695ace38bd5b...
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.