OpenTechnical

OT-2026-000084387

Publication integrity record

Two bellows cup vacuum gripper, two zone face, common isolation valve, pump fed, 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-2026-000084387) never changes.

Identity and time

Publication numberOT-2026-000084387 · never reused
Internal UUID01a0ae98-5b62-72c8-9941-7122d6d86fbf · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:00:15.619216Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000084387
StatusPUBLIC

Content hashes

Canonical texteb19f651da9939536e4141db95eef4969522c48e81c18ce49a38f3e66d907936
Markdown10130ccf4ef8461d0eeb58a73be769e446ea0a88aefb3eb49ba2264a4dbafc94
PDF
Publication page29d88af3ff374f16d68d88921ba1f6d423e32595c3f7f4bbd0a658a40fdcd17a
Manifest5d1362158283a1f7f1a157cf59d0a298189d3a0b48f0f195179e20a67f970868

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
SignatureQrHH0x+ivALRrn22hlbt/cdITCS3hCf1FQFP/zTEbxWDiE34M9iBV3YloWAhYakN1adWAlqhRCc8J1rlonNIAg==
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

2026-09-17T09:56:19.732142ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000084387
observed 29d88af3ff374f16d68d88921ba1f6d4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:56:19.715089ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000084387/manifest.json
observed 5d1362158283a1f7f1a157cf59d0a298...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:56:19.699487ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000084387/publication.md
observed 10130ccf4ef8461d0eeb58a73be769e4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:56:19.681437ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000084387/publication.txt
observed eb19f651da9939536e4141db95eef496...
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.