OpenTechnical

OT-2026-000061356

Publication integrity record

Single bellows cup vacuum gripper, pump fed, supply line pressure sensor, 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-2026-000061356) never changes.

Identity and time

Publication numberOT-2026-000061356 · never reused
Internal UUID01a0ae8b-1384-7c05-a659-5e36c9a92cfc · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:45:45.252443Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000061356
StatusPUBLIC

Content hashes

Canonical text68d6bff5563f7a9556e329678443503dba57877ff4405f530801fcf33de63045
Markdown179394f8c6cf662f104e57d413f0a0dfc26965c3ffed6f4fc388368480a7e975
PDF
Publication page7b2b68275302ba4c9e61f446683976489c8d19d71cfb601d8e089490ca20a344
Manifest8584d0c0a01f390a06975657c560c52798fb834716cfd25b76c553349537270d

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
SignaturetVpULuaircVuPjHBg+J5nPldL4vCodkMWm2kHl1N/1aOq6UI24Gwqwe+60vju1n/piGsl+cOw7Tntla9989aBA==
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

2026-09-17T10:42:48.242282ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061356
observed 7b2b68275302ba4c9e61f44668397648...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:42:48.221405ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061356/manifest.json
observed 8584d0c0a01f390a06975657c560c527...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:42:48.204466ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061356/publication.md
observed 179394f8c6cf662f104e57d413f0a0df...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:42:48.185470ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061356/publication.txt
observed 68d6bff5563f7a9556e329678443503d...
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.