OpenTechnical

OT-2026-000083417

Publication integrity record

Three cup vacuum gripper, three zone face, 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-2026-000083417) never changes.

Identity and time

Publication numberOT-2026-000083417 · never reused
Internal UUID01a0ae97-c964-7263-b3a4-9f1c48a269ea · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:59:38.321156Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000083417
StatusPUBLIC

Content hashes

Canonical text729228f2f567207ead4c3396017c748435b14d62312152c5fea4ef247079f038
Markdown721d2c0225d1c7a427e6cd51d4dff50c4bcdeddf4a486538ee39961a683b5886
PDF
Publication pagea29fa46286efe190c0eae504112bd9b6307ca8180d109b7bc62002dc2198ab48
Manifestef921198389d43624e553760569fffdc30d38e539a8af39a367a1a8ff559ca27

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
SignatureUQYirw24aQ1yWMu5j4wbEyr3q6TA/FBqxRnCCzfb+p9IuXpt5r1EsCgdhEotOVfMMzMiP8nYGyoRshwcBfbiCw==
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

2026-09-17T09:57:49.842566ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083417
observed a29fa46286efe190c0eae504112bd9b6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:57:49.824825ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083417/manifest.json
observed ef921198389d43624e553760569fffdc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:57:49.807513ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083417/publication.md
observed 721d2c0225d1c7a427e6cd51d4dff50c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:57:49.790317ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083417/publication.txt
observed 729228f2f567207ead4c3396017c7484...
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.