OpenTechnical

OT-2026-000021371

Publication integrity record

Foam pad vacuum gripper, four zone face, per zone isolation, three stage ejector, 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-2026-000021371) never changes.

Identity and time

Publication numberOT-2026-000021371 · never reused
Internal UUID01a0ae6f-865d-7ec2-a72c-47379cad7cd0 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:39.631048Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000021371
StatusPUBLIC

Content hashes

Canonical texta36e3493e22f5b117c8c9e6bbbf5e8f6f3d3bc6ab10e410b76d7b4522be80204
Markdownea3f05997b28572247e1d83ae8ee3da6a1c0bb3efa03e7319b636332e58969e9
PDF
Publication page4c8346d74001352af3937e8496db202a5486af152e2cbf802776c3850b280b51
Manifestb57792a7afa947d1568c5034ccdf52bfe6dbda6df8c7932887672e287eec06b5

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
Signatureopn/HlGYwHcVwnf/a57tuGEhlOKVmrq3Lnpt9Oss+txilPxTi1G3Esa24SSBKHxCIZuYCXw72938mhcAMuYgCw==
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

2026-09-17T11:55:14.356847ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021371
observed 4c8346d74001352af3937e8496db202a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:14.338653ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021371/manifest.json
observed b57792a7afa947d1568c5034ccdf52bf...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:14.319869ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021371/publication.md
observed ea3f05997b28572247e1d83ae8ee3da6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:14.293291ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021371/publication.txt
observed a36e3493e22f5b117c8c9e6bbbf5e8f6...
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.