OpenTechnical

OT-2026-000087400

Publication integrity record

Foam pad vacuum gripper, four zone face, six outlet manifold, pump 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-2026-000087400) never changes.

Identity and time

Publication numberOT-2026-000087400 · never reused
Internal UUID01a0ae9a-cd50-7b3c-947d-37ea5402c988 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:02:55.852518Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000087400
StatusPUBLIC

Content hashes

Canonical text5796a4cb958aa1287861053b619dfc3c4a1c3ce636adad09773bca5a2a10a812
Markdown5dc371b788c458a3e8d8e84abddda7ea4d56cee626fd942f24bb06975d425e28
PDF
Publication pagece1dc81485c77b4db1cd326751fc9fb2d0fc8e2e6be05f2a8c1cab6327d01f79
Manifest578eda4f9d541091000437c7c9938f195da447f3e9a0598a03f77468facd7b9c

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
SignaturetmOOFR/HIwypGwYgORWjXNQ9u+tbXuKmIb4FdoEw4HQr0dJ+eQJukvLqpA5XN5CFj27sFtjFu+GUqlxft82mCg==
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

2026-09-17T09:50:42.793813ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087400
observed ce1dc81485c77b4db1cd326751fc9fb2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:42.776635ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087400/manifest.json
observed 578eda4f9d541091000437c7c9938f19...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:42.758655ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087400/publication.md
observed 5dc371b788c458a3e8d8e84abddda7ea...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:42.740323ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087400/publication.txt
observed 5796a4cb958aa1287861053b619dfc3c...
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.