OpenTechnical

OT-2026-000042105

Publication integrity record

Four cup vacuum gripper, four outlet manifold, plant vacuum 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-2026-000042105) never changes.

Identity and time

Publication numberOT-2026-000042105 · never reused
Internal UUID01a0ae7a-5d71-7ba6-b906-963a2283c703 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:27:30.052779Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000042105
StatusPUBLIC

Content hashes

Canonical text127a4e4c25a6455794cea4cc6adc0709de5814d49a5924dc4d37aeadaa8d5a37
Markdown9ed61f2a72338bcc506c7fecd5c3c1181618c01bdec952a3b165accd589bdee8
PDF
Publication page10207437cb7d0473df957186d0203e4311c6731b0bc7ba2b073161f9d6163365
Manifestcb7ae68bb22dc56f1dc020d5d6c6b4dfb58b8d6c9823fff5ce7338d0dde0561e

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
SignatureF+N+DrVCJjAUpGKSe46ePIjm9UTsCrMtQyhyz2HlBxNJDH54LobUS9sI+8quzyOYpZvlEzgKT0NqIwPKiZN3CQ==
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

2026-09-17T11:15:38.412095ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042105
observed 10207437cb7d0473df957186d0203e43...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:38.394289ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042105/manifest.json
observed cb7ae68bb22dc56f1dc020d5d6c6b4df...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:38.374275ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042105/publication.md
observed 9ed61f2a72338bcc506c7fecd5c3c118...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:38.354740ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042105/publication.txt
observed 127a4e4c25a6455794cea4cc6adc0709...
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.