OpenTechnical

OT-2026-000049477

Publication integrity record

Four cup vacuum gripper, four outlet manifold, single stage ejector, manifold 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-2026-000049477) never changes.

Identity and time

Publication numberOT-2026-000049477 · never reused
Internal UUID01a0ae81-8f7c-7997-92a9-53bfae67d097 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:35:21.728203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000049477
StatusPUBLIC

Content hashes

Canonical text2fc9b14bd2e7dd6b03896da0b6716dde41be667524abffaa544a5984707d44ef
Markdownf2a47b1de2c0480c550beb24e68174d37eb5979c6a6def41259c638c6f56b506
PDF
Publication pagec220cab507df716f4b7791e34ce333adb51b6f595493d158d4e850428abe82d1
Manifestdc5250916bedbc04cb5f60d7f1d25d550277eaa50d55c7db490bb86ec0a269cf

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
SignatureF01+w07Rhumi6z+Wquesp3BkgCkD36qLSvuLgGFrudCGjSd5ImLbba464+MFyOBs6KH2br46tuSKAuhVeT2YDQ==
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

2026-09-17T11:02:19.330477ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049477
observed c220cab507df716f4b7791e34ce333ad...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:19.312426ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049477/manifest.json
observed dc5250916bedbc04cb5f60d7f1d25d55...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:19.293436ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049477/publication.md
observed f2a47b1de2c0480c550beb24e68174d3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:19.275733ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049477/publication.txt
observed 2fc9b14bd2e7dd6b03896da0b6716dde...
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.