OpenTechnical

OT-2026-000076401

Publication integrity record

Two bellows cup vacuum gripper, two zone face, per zone isolation, pump fed, pressure sensor per zone, pulsed blow-off before set-down

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-2026-000076401) never changes.

Identity and time

Publication numberOT-2026-000076401 · never reused
Internal UUID01a0ae94-6a70-7087-bc3d-f0ffd8fd434c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:57.307071Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000076401
StatusPUBLIC

Content hashes

Canonical text19894c325f2c00fa73e9fa743fe1f6b9d8cb63d2f4273c6082407cc6c6b17514
Markdown76fee0a0a592a1c4343016abdcdfa7576d81b7f6332d16bdde583d941e4c7a50
PDF
Publication page06467428795816ca1e6cebe1e5a6db0edf57098cb8e9df4902ff9025e87010c4
Manifest1394271c1b48d8038a25ce778b37782432d1e08db8dec52b769f599bef74a923

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
SignatureHYg7XSQ0zxe62ARpL/QeAmVysZCI1ZwGE5+ATx3Xx8kh3lZaGxnYUdQ35gzeoxlEOiYqF1LkVc3WVU1lbsbjAQ==
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

2026-09-17T10:12:19.747494ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076401
observed 06467428795816ca1e6cebe1e5a6db0e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:12:19.727212ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076401/manifest.json
observed 1394271c1b48d8038a25ce778b377824...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:12:19.705490ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076401/publication.md
observed 76fee0a0a592a1c4343016abdcdfa757...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:12:19.565490ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076401/publication.txt
observed 19894c325f2c00fa73e9fa743fe1f6b9...
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.