OpenTechnical

OT-2026-000011521

Publication integrity record

Single bellows cup vacuum gripper, two stage ejector, supply line pressure sensor, pulsed 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-2026-000011521) never changes.

Identity and time

Publication numberOT-2026-000011521 · never reused
Internal UUID01a0ae6c-88ff-7d30-86af-9dd3852ff228 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:12:23.703080Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000011521
StatusPUBLIC

Content hashes

Canonical text2881ab72aaed2b41aa94444cfe9844851dc1758c18bcb2013da0c93733363bd6
Markdownd0f89a75ef58b5b7d63c1f8f4d290a6069e1916cf401a77049f51ea35e5bc4e2
PDF
Publication pagec7f0fc6a2946f239df091c7ceafd122c63831b78ea803077cc2d44f568612bd2
Manifestd80e83920867c5f29ae5aef39ba8b1e1fb8d91e3237b82f6b1c6225968686de6

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
SignatureijOvEhnPM3lN3pva5foWmHy44bHBhxEdbYWJ6BsoSc+2PAJ2qaS3IMQDGFa2ayJgQ/YO1iW/ZfAdCbRRvvHqBg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

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

Independent retrieval

2026-09-17T12:13:18.467799ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011521
observed c7f0fc6a2946f239df091c7ceafd122c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:13:18.449575ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011521/manifest.json
observed d80e83920867c5f29ae5aef39ba8b1e1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:13:18.430795ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011521/publication.md
observed d0f89a75ef58b5b7d63c1f8f4d290a60...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:13:18.408365ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011521/publication.txt
observed 2881ab72aaed2b41aa94444cfe984485...
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.