OpenTechnical

OT-2026-000028567

Publication integrity record

Three cup vacuum gripper, three zone face, per zone isolation, plant vacuum fed, pulsed 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-2026-000028567) never changes.

Identity and time

Publication numberOT-2026-000028567 · never reused
Internal UUID01a0ae72-e2f8-7061-b42e-6213e97511f5 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:19.949572Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028567
StatusPUBLIC

Content hashes

Canonical text4df4c2a86eb04f0afe96c1cb4865a5c8b54b43bbea1e480ea6efaa962ff1e381
Markdown636d37b743d596f068a9ea1413778911099e989f9f1188a1c9659b84646faa28
PDF
Publication pagef1e15dd9a2fd945b15c0b4d90a8af90f1abe856fd03cd7688950e89fd9255e1e
Manifest5cdf09c35dec964ff8596b5e633578143b5db9f0b286ff1f1aa73be0cc18ba8c

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
SignatureIPb0kQyjTq1vjOVP7RuYbU0FpMro6taxG0ItZi/7rVUh7OKc/3/0oU/pfxcPdIr6+oMwoiPfhihTIYnvjpyFAA==
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

2026-09-17T11:40:51.260718ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028567
observed f1e15dd9a2fd945b15c0b4d90a8af90f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:51.243051ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028567/manifest.json
observed 5cdf09c35dec964ff8596b5e63357814...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:51.223466ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028567/publication.md
observed 636d37b743d596f068a9ea1413778911...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:51.202301ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028567/publication.txt
observed 4df4c2a86eb04f0afe96c1cb4865a5c8...
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.