OpenTechnical

OT-2026-000057808

Publication integrity record

Single bellows cup vacuum gripper, plant vacuum fed, sustained blow-off after set-down

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-2026-000057808) never changes.

Identity and time

Publication numberOT-2026-000057808 · never reused
Internal UUID01a0ae88-6ed7-7f2f-8856-8eb1d22d82d5 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:42:52.020108Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000057808
StatusPUBLIC

Content hashes

Canonical textaddd8485568c065ce64be4813f955696c30fa39a9ed2730e7bf8ff5a1cee0669
Markdowna116378f6fe1a578829da06c9f3c9eee27cab82b2f147c2c92604638d65095ef
PDF
Publication page5cf8884603fbabad3fb56aba8467690ba2aee99160a20e308b0689735a9aeb13
Manifest4f254375f117288636ddb4c78e0e501600c36c266477d1f306cee082319a43d3

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
Signaturemil3lCy7R5b/+ARIM770uN8/DJeHeiJaulYcV1ABWrXCcaFdN7T5wuH2WYNSWgTFSrCoarw3BR/YBjcvxQfqCw==
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...

Independent retrieval

2026-09-17T10:47:22.564438ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057808
observed 5cf8884603fbabad3fb56aba8467690b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:22.543735ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057808/manifest.json
observed 4f254375f117288636ddb4c78e0e5016...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:22.523593ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057808/publication.md
observed a116378f6fe1a578829da06c9f3c9eee...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:22.501645ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057808/publication.txt
observed addd8485568c065ce64be4813f955696...
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.