OpenTechnical

OT-2026-000086056

Publication integrity record

Three bellows cup vacuum gripper, three zone face, per zone isolation, pump fed, sustained blow-off 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-2026-000086056) never changes.

Identity and time

Publication numberOT-2026-000086056 · never reused
Internal UUID01a0ae99-e82b-7a89-a577-64d620844cee · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:01:57.178584Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000086056
StatusPUBLIC

Content hashes

Canonical text3d561489e86aefe3bcd2c461ff10edc55325b70ff9943d27ff5f39fa9455486c
Markdowndd193dc2d3e882f290820128f78af2c01090723fec6456085a6d7895d0877d05
PDF
Publication pagea8e9610801ecc10d7be1f26dd2750ba19d0837d5d262b654d0d73b4ed7cc4b5d
Manifest11e70764c4b3929d3eeaf865fe8b53fd257468b17280f8e0616eed6a689b8fb5

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
SignatureiI6BHTJUuLXIz//YPGwUFkP57ztn7+q0WC+E4YNdCx0x9/ewtka8mHCM2t3/V2LrQ0Ilvl2WMEySlBXTDh1ADw==
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

2026-09-17T09:53:03.162387ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086056
observed a8e9610801ecc10d7be1f26dd2750ba1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:53:03.144829ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086056/manifest.json
observed 11e70764c4b3929d3eeaf865fe8b53fd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:53:03.128141ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086056/publication.md
observed dd193dc2d3e882f290820128f78af2c0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:53:03.111997ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086056/publication.txt
observed 3d561489e86aefe3bcd2c461ff10edc5...
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.