OpenTechnical

OT-2026-000073053

Publication integrity record

Four cup vacuum gripper, four zone face, four outlet manifold, plant vacuum fed, supply line pressure sensor, 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-2026-000073053) never changes.

Identity and time

Publication numberOT-2026-000073053 · never reused
Internal UUID01a0ae92-c816-748a-b566-bf5aa1d42e4c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:10.336919Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000073053
StatusPUBLIC

Content hashes

Canonical text68926e339fff6c60b66c4c6dea8ae6aecd04c01389a76f61663b08b62abd97bd
Markdown13aa47ec59c1ed5112a1857af7aaf02f1e096233e0f56b3c849b58681ad70697
PDF
Publication page71efce508cdc21f9422dbf13de151bcea0598271683a1bd288e5c72be32ca6c6
Manifest419a7f0114e2f4580a780588f23782b90cdeaf69349e121265265e2557bb3831

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
SignatureMZ/lrxHh6hKvh9tJmKUUlJ1UcOyu4/3r/8+HgW0iz0LxPvFGmJNMJHQ9rromqCVEoxtxW2Z2R7lFDDWdWa4/BA==
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

2026-09-17T10:21:59.890650ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073053
observed 71efce508cdc21f9422dbf13de151bce...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:59.872071ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073053/manifest.json
observed 419a7f0114e2f4580a780588f23782b9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:59.855110ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073053/publication.md
observed 13aa47ec59c1ed5112a1857af7aaf02f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:59.838980ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073053/publication.txt
observed 68926e339fff6c60b66c4c6dea8ae6ae...
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.