OpenTechnical

OT-2026-000087590

Publication integrity record

Four cup vacuum gripper, four zone face, two stage ejector, supply line pressure sensor, 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-2026-000087590) never changes.

Identity and time

Publication numberOT-2026-000087590 · never reused
Internal UUID01a0ae9a-cd52-7058-b093-4c9091d5e1d1 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:02:55.852518Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000087590
StatusPUBLIC

Content hashes

Canonical textae0bed5685793a22f6ba9e4286a8c645dd8018016f340fe5cba3e7f9f5045b23
Markdownae13a9ef2e91ee371db63f590de4331b27bae25d76587593a08b67cb7d30b665
PDF
Publication page18b9206b246b5f1bd2eea8c5be40e377d5a5ec2d10a9611d73454978347cab45
Manifestc1f54231935d3ee47048cad3ee62281e16169e6916664f3b733bccb71761d620

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
SignatureWJt3LRT9sq8HLsr4Pr7G18TWkdcdrw7vLWWx7b8zXiX1Tzfs6FWq2/KhiEIKsfZ48Osbqgu2rGOqF865XcJwAg==
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

2026-09-17T09:51:01.579592ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087590
observed 18b9206b246b5f1bd2eea8c5be40e377...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:01.563443ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087590/manifest.json
observed c1f54231935d3ee47048cad3ee62281e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:01.531780ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087590/publication.md
observed ae13a9ef2e91ee371db63f590de4331b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:01.502063ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087590/publication.txt
observed ae0bed5685793a22f6ba9e4286a8c645...
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.