OpenTechnical

OT-2026-000072190

Publication integrity record

Single bellows cup vacuum gripper, three stage ejector, supply line pressure sensor, vented 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-2026-000072190) never changes.

Identity and time

Publication numberOT-2026-000072190 · never reused
Internal UUID01a0ae92-47c2-7b57-8001-612e4f156b45 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:37.365346Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000072190
StatusPUBLIC

Content hashes

Canonical text6adc41d9d11489730035c27cdbed9098d219c302b205940c009b3657107c2547
Markdown25fbae88bdf88b689e9499031cd9d0bb369fe338290d0e6eb3b2b98834e9dcc9
PDF
Publication page0d8ee4f6fe07f08a25bd4222ed536af67a29eeed612404f65f8f02d2d0c428a9
Manifestc775f737a920eaa8955d0428a2762a2efeadfa5349b1756a7eacc1706a62ae28

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
SignatureXvZq/UpR8vlShpuFJ5KoJOgn0P2+j8VWx5x3vfBKNWIs1H4IEBYMOuo+ACUjsEusgocQfxPO+bfA8HORseg/Cw==
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

2026-09-17T10:23:17.417231ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072190
observed 0d8ee4f6fe07f08a25bd4222ed536af6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:17.400144ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072190/manifest.json
observed c775f737a920eaa8955d0428a2762a2e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:17.384105ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072190/publication.md
observed 25fbae88bdf88b689e9499031cd9d0bb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:17.366791ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072190/publication.txt
observed 6adc41d9d11489730035c27cdbed9098...
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.