OpenTechnical

OT-2026-000031624

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, single 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-2026-000031624) never changes.

Identity and time

Publication numberOT-2026-000031624 · never reused
Internal UUID01a0ae74-bacf-7da4-ab39-4b564506881b · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:20.739935Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000031624
StatusPUBLIC

Content hashes

Canonical text530695d99f935655a590d76311f6323f8369ec324a6cd6e52125d1fcad0469a6
Markdown91ba7574863affcdc2a1e276a2b6935759266a866daa473079b847215355f812
PDF
Publication page023d8a20edd6b85fd0d1be59f900fae145886a4f26e0f5229aa6d2d81131f9b2
Manifest20efc83e9672087f9ebcb07e900efb9855a1619bb39763c66b450d2ce2417e9a

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
SignatureHzIPTgldz1s1tBkOvL9Ew/Z/X09SXNj4CVxkSf84M/ciUopYy63h15bNutk+uRkmOwgzNOdMIIXHURmhCT6YDg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:34:40.416356ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031624
observed 023d8a20edd6b85fd0d1be59f900fae1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:34:40.399039ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031624/manifest.json
observed 20efc83e9672087f9ebcb07e900efb98...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:34:40.381039ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031624/publication.md
observed 91ba7574863affcdc2a1e276a2b69357...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:34:40.363095ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031624/publication.txt
observed 530695d99f935655a590d76311f6323f...
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.