OpenTechnical

OT-2026-000072294

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, plant vacuum fed, 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-2026-000072294) never changes.

Identity and time

Publication numberOT-2026-000072294 · never reused
Internal UUID01a0ae92-47c3-7d32-9306-3955d8db3683 · 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-2026-000072294
StatusPUBLIC

Content hashes

Canonical textd919a877ced80f15babd75986cf42ceeb1b91e46eab7d5844223acf9f359092e
Markdown154464165637dee56e1cf4dff37f40a802d5ae289b668fe88f42360904e210b7
PDF
Publication page8dcd25a2798fb573915c99b246f6e2ac3c358ce1d5613a8bd0b9637b6c131a5d
Manifest30ef3d94e3897c69c5ae62880c27ee37f6658dc6a9179c02818841d62efd2a68

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
SignatureDbfoecvMze8TBLnKE5F52BxlnnQsj/9YQl9cihLEPbPOn8eHwhxeX0VTw6cYL6r4aFlCSFtE4T2tw2cQvE/oAA==
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

2026-09-17T10:23:30.729096ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072294
observed 8dcd25a2798fb573915c99b246f6e2ac...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:30.711458ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072294/manifest.json
observed 30ef3d94e3897c69c5ae62880c27ee37...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:30.695641ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072294/publication.md
observed 154464165637dee56e1cf4dff37f40a8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:30.677995ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072294/publication.txt
observed d919a877ced80f15babd75986cf42cee...
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.