OpenTechnical

OT-2026-000072687

Publication integrity record

Three bellows cup vacuum gripper, three zone face, four outlet manifold, single stage ejector, supply line pressure sensor, 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-2026-000072687) never changes.

Identity and time

Publication numberOT-2026-000072687 · never reused
Internal UUID01a0ae92-89d9-78ba-8b64-05414c03ae3e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:54.283203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000072687
StatusPUBLIC

Content hashes

Canonical text10abf57ed4ba6ecf5e845455071ca4f0d3736ed3aaec48461d3fec70cf4433b8
Markdown4f83b7824e8f1226a1a9a69af3753d4bc1bdd3119dfe546f5e4fdf1334e74a4a
PDF
Publication page2e3ec1b1492d95c817041c4f5efe4877fdf4e3a8d9f9534eba2bac2d00dd371d
Manifest78d42803e4764a6afd77d012c3f297204f510e43c775db93bc00f2196ce23ffa

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
Signature4FVrffaX0YNiggR2ztp9WjWIV7BDsuAOBB0nzSCK7vDkOMyn6e3X4LLV6LVk+WCklhf9D+CGjCJi8ILF1l2YDA==
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

2026-09-17T10:22:33.391202ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072687
observed 2e3ec1b1492d95c817041c4f5efe4877...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:33.374382ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072687/manifest.json
observed 78d42803e4764a6afd77d012c3f29720...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:33.357910ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072687/publication.md
observed 4f83b7824e8f1226a1a9a69af3753d4b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:33.340630ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072687/publication.txt
observed 10abf57ed4ba6ecf5e845455071ca4f0...
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.