OpenTechnical

OT-2026-000020627

Publication integrity record

Foam pad vacuum gripper, two 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-2026-000020627) never changes.

Identity and time

Publication numberOT-2026-000020627 · never reused
Internal UUID01a0ae6f-65e1-7607-94aa-d9b9f8f1c85b · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:31.316024Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000020627
StatusPUBLIC

Content hashes

Canonical textd86aaa1d4cfc3fcf83ea1f9256d64a7c56d2a26c846507633686bea004bf2f2c
Markdown2df463b9101a9740f5e01f44c55be2d20126e9169e94bff3b5e7d35e7d29e2ae
PDF
Publication page6368cf566056d36b8b91d4c405382c9418492830b620382f4068bc11a30a42e1
Manifest9a818e8fe581bb4ac115908e66aedbf2db69d1b143e7ed77a019c025a347080d

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
SignatureYUWVPKszGDraJnlQPYB+mkXPWStS7MP84RsdfSZ13cLw+KoBQPMRhYtGL1zi3/DbHMPTloB7WpaykhI4qAc9Bw==
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

2026-09-17T11:55:32.019167ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020627
observed 6368cf566056d36b8b91d4c405382c94...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:31.999482ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020627/manifest.json
observed 9a818e8fe581bb4ac115908e66aedbf2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:31.980150ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020627/publication.md
observed 2df463b9101a9740f5e01f44c55be2d2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:31.958549ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020627/publication.txt
observed d86aaa1d4cfc3fcf83ea1f9256d64a7c...
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.