OpenTechnical

OT-2026-000058000

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, 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-2026-000058000) never changes.

Identity and time

Publication numberOT-2026-000058000 · never reused
Internal UUID01a0ae88-6ed9-7edf-8be3-e8340a1f2799 · 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-2026-000058000
StatusPUBLIC

Content hashes

Canonical text76743ae31b2779be7632eda40af822ebe2ea823e7f88795216c5f00cfdd6ee50
Markdown67cf134927f4dd9beacd0f559b46285ccd0964f9fbbbd39f9c9277c2d39715f9
PDF
Publication page8969883b8dcab7d63c0d4ac65d5bf4dfb39d996e1f95e83edf1939b69687cf10
Manifest3fdef3063a5baae3cd49e7c429a8f15a48766e8776a8aecc0a924611cbf532e4

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
SignatureZDJWktD/xBjcD7AoIiqyfeMsF+pLEiB2LZCDfluzt/0LkE3O9UAWAgvbNzvZQNBqz1LSvEnrwRTrBng658m0Dg==
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

2026-09-17T10:47:37.928291ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000058000
observed 8969883b8dcab7d63c0d4ac65d5bf4df...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:37.910542ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000058000/manifest.json
observed 3fdef3063a5baae3cd49e7c429a8f15a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:37.893581ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000058000/publication.md
observed 67cf134927f4dd9beacd0f559b46285c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:37.875306ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000058000/publication.txt
observed 76743ae31b2779be7632eda40af822eb...
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.