OpenTechnical

OT-2026-000021031

Publication integrity record

Foam pad vacuum gripper, three 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-2026-000021031) never changes.

Identity and time

Publication numberOT-2026-000021031 · never reused
Internal UUID01a0ae6f-65e4-76fc-9f32-fd1d9016c4b2 · 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-2026-000021031
StatusPUBLIC

Content hashes

Canonical text48852d3f3e6543af37ebdf831832631b5e50367f5f20116cb057d50b46a40042
Markdownfb3a6f52605255ff1f80ce973c9dea0e886b378f1fcbedbb17082ad9d0d656b9
PDF
Publication page10aad8a8e5b0e1519fabfe2df4f04322095194a4978df5115d5b2669303e1f39
Manifest4a8e98319e26ac4a21eed033ce490d8c68784fb1fd76d228d808846a3bcd4ed5

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
SignatureXkmlJSka7t44dnOl6l8X4YigfCwEOj5F+k1nIJLLz+i4DVTijHRgwJEVO5Cb+w4noV8SNHrRHMOKJixFPXmnDg==
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

2026-09-17T11:56:11.644639ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021031
observed 10aad8a8e5b0e1519fabfe2df4f04322...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:56:11.626082ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021031/manifest.json
observed 4a8e98319e26ac4a21eed033ce490d8c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:56:11.606769ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021031/publication.md
observed fb3a6f52605255ff1f80ce973c9dea0e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:56:11.588395ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021031/publication.txt
observed 48852d3f3e6543af37ebdf831832631b...
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.