OpenTechnical

OT-2026-000100649

Publication integrity record

Two cup vacuum gripper, two zone face, two 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-2026-000100649) never changes.

Identity and time

Publication numberOT-2026-000100649 · never reused
Internal UUID01a0aea3-66f3-7046-a57d-d0787075c3ae · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:12:19.463543Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000100649
StatusPUBLIC

Content hashes

Canonical textaf6abc2c23a7ec537b075e0d2d7c5c05632734eb3591b4b4e73054bb8ca9d134
Markdown5c508bae0c2daf410881f11612c0246ef4a8fd15065cf2b062b0feea61aa8b8e
PDF
Publication page79856b68154fe702e211c372532bad9f7ae1114b3afc5deac306ef9672dd92f0
Manifest22787f87a8cffc22e281ae435b9440fcd3e8ac0048eaeca050c5ed98142b999c

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
SignatureDg5BZtHf10E7PZIBbxn+5nLhd8lTe7EJKo/tQdJN+uYVI8agkfYdsBpycBjgN/fJ57gQ6ZVQQ+awcStWBJsjCw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:27:04Z
batch OT-TS-2026-W38-023 · RFC 3161 token · inclusion proof
root 095d30148a2ef87d42d7818ebe7543f9...

Independent retrieval

2026-09-18T00:43:16.544336ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100649
observed 79856b68154fe702e211c372532bad9f...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-18T00:43:16.262539ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100649/manifest.json
observed 22787f87a8cffc22e281ae435b9440fc...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-18T00:43:15.894855ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100649/publication.md
observed 5c508bae0c2daf410881f11612c0246e...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-18T00:43:15.632511ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100649/publication.txt
observed af6abc2c23a7ec537b075e0d2d7c5c05...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T09:27:27.285509ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100649
observed 79856b68154fe702e211c372532bad9f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:27:27.268134ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100649/manifest.json
observed 22787f87a8cffc22e281ae435b9440fc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:27:27.249793ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100649/publication.md
observed 5c508bae0c2daf410881f11612c0246e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:27:27.232611ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100649/publication.txt
observed af6abc2c23a7ec537b075e0d2d7c5c05...
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.