OpenTechnical

OT-2026-000056084

Publication integrity record

Single bellows cup vacuum gripper, pump fed, sustained blow-off after 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-2026-000056084) never changes.

Identity and time

Publication numberOT-2026-000056084 · never reused
Internal UUID01a0ae87-0a4b-7b14-ae66-643c7a4bc25f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:41:20.734835Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000056084
StatusPUBLIC

Content hashes

Canonical textab2aa9db796deb30a0118e7224a36aa0af5f22971eaa98050e0449b2ff89b07b
Markdownb93a5ce685014c3b9a428ebfeb7b25cdc5b82bc404a925f57cb7255759198965
PDF
Publication page2f5614b39d256aa77e16b443294c7bc2330a21a3401ca3971293001e122238db
Manifest9d078a5a8ebfbb2f1321d713c0cddcc02091faed7e88276d549afa6af9153e2e

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
Signaturea++9tqcUFb9jMAnmO3Fjtr04MIEeWPkg6EpacbWV7BLDotu1Q/iYS67cWokaWmB++8MBRYS0RLT5qxaIasjxBA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...
timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T10:51:16.006513ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056084
observed 2f5614b39d256aa77e16b443294c7bc2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:15.989669ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056084/manifest.json
observed 9d078a5a8ebfbb2f1321d713c0cddcc0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:15.972921ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056084/publication.md
observed b93a5ce685014c3b9a428ebfeb7b25cd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:15.954774ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056084/publication.txt
observed ab2aa9db796deb30a0118e7224a36aa0...
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.