OpenTechnical

OT-2026-000081593

Publication integrity record

Three bellows cup vacuum gripper, three zone face, three outlet manifold, single stage ejector, 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-2026-000081593) never changes.

Identity and time

Publication numberOT-2026-000081593 · never reused
Internal UUID01a0ae97-0f72-75c2-9811-1acc79a3f955 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:50.648824Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081593
StatusPUBLIC

Content hashes

Canonical text7c9455dbf78d90af6f8dd365c547317fb1fdcefc8e22c68d0fd69b35765dc173
Markdown75f2cf7dd6e9353999e184f1c580a3a41d37b1f0edd167ec2d89c213d92d0278
PDF
Publication page72a32b0dce48d85167840627e00f39eae8ec3d8ae62269eeb12aa5977164f192
Manifest364e28221ecba9382171b604a97e976b9c81b364fe87681b936eb1c48e6b466f

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
SignatureU+t99WPRWk7Tah9TsGo5C6rdVzyLYdutpuNByGOth226Z90pvsYOiPPZJC8tzbGn2JpzrOoQSdtWU7SXTXvpAg==
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

2026-09-17T09:59:37.770908ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081593
observed 72a32b0dce48d85167840627e00f39ea...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:37.753429ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081593/manifest.json
observed 364e28221ecba9382171b604a97e976b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:37.736340ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081593/publication.md
observed 75f2cf7dd6e9353999e184f1c580a3a4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:37.719262ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081593/publication.txt
observed 7c9455dbf78d90af6f8dd365c547317f...
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.