OpenTechnical

OT-2026-000055449

Publication integrity record

Single cup vacuum gripper, plant vacuum fed, supply line pressure sensor, vented 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-2026-000055449) never changes.

Identity and time

Publication numberOT-2026-000055449 · never reused
Internal UUID01a0ae86-a102-7953-9595-3ccb4ddb189d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:40:53.783868Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000055449
StatusPUBLIC

Content hashes

Canonical texte73ebb72a11b47e5f918ed933381fa3af54156688580e24d85cd1c77f9638c3e
Markdown64ab3f32eb1ae9d76311f69b0744b8044d7c21c0985b2faed50c2d850bc47b3b
PDF
Publication paged1a33aa2e43a5912677d3beaafaf018cdc8465c0808c3a7f03e7a25ae048ec19
Manifest08e7ce809d4159b89d443b7c1f0c4084e06a10cef799762cda957467ea51f3f2

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
SignatureQbD/rwvO2J6hOqVz3TxyxATl7EjKXXY9g/sPXf7kdhh2ilcCNCzbQ2OWMl0st76+FlcW4AYg/hYcDvDolCFtAw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...
timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T10:52:06.175740ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055449
observed d1a33aa2e43a5912677d3beaafaf018c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:52:06.151418ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055449/manifest.json
observed 08e7ce809d4159b89d443b7c1f0c4084...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:52:06.132205ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055449/publication.md
observed 64ab3f32eb1ae9d76311f69b0744b804...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:52:06.112436ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055449/publication.txt
observed e73ebb72a11b47e5f918ed933381fa3a...
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.