OpenTechnical

OT-2026-000077483

Publication integrity record

Four cup vacuum gripper, four zone face, common isolation valve, plant vacuum fed, pressure sensor per zone, 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-2026-000077483) never changes.

Identity and time

Publication numberOT-2026-000077483 · never reused
Internal UUID01a0ae94-f50a-709f-b9bc-d69e25a85501 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:32.796581Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000077483
StatusPUBLIC

Content hashes

Canonical textc29c7297ccbd44f1d4a8cc698140fd2d4ca27aacb612662859ff7661ea835753
Markdown70d65d4fcd8e08c0262149e0367dac276bc2cc5e68b31f356a4f140a8a183182
PDF
Publication page7e2c7044f86edfe958815546ae6d101b3e3ffe29041dc952535d9061443b53cf
Manifestf1a280c7ca8b149a87f357fa0627419c0aba6e74212f6969ebea9887a6112f46

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
SignatureilaY2za3gs0qINSx62tC5xjmBEALlK/vRa5ecUF0feKRBO54s6kcqwme7hDb0ShwdvGdjs7VOQlP2TjG+1nyDg==
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

2026-09-17T10:09:10.264463ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077483
observed 7e2c7044f86edfe958815546ae6d101b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:10.244083ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077483/manifest.json
observed f1a280c7ca8b149a87f357fa0627419c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:10.225814ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077483/publication.md
observed 70d65d4fcd8e08c0262149e0367dac27...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:10.206410ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077483/publication.txt
observed c29c7297ccbd44f1d4a8cc698140fd2d...
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.