OpenTechnical

OT-2026-000081641

Publication integrity record

Three bellows cup vacuum gripper, three zone face, three outlet manifold, two stage ejector, 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-2026-000081641) never changes.

Identity and time

Publication numberOT-2026-000081641 · never reused
Internal UUID01a0ae97-0f72-7645-8243-e063597a749c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:50.648824Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081641
StatusPUBLIC

Content hashes

Canonical text3a3951e511036317c6bbd33d8156a081ba1c64aa497cad2d03d4d80ff5df0659
Markdown687642f55b9a6b12477c08493612a89cd013cb04a623ea2fb1f40d26fa9141b2
PDF
Publication pagea6c269073b987d82231d677d958778d0ffebfc650cd1cc2f409731ab9bc31223
Manifestcbd4b23b2aa8280309ffe9d0c13a83a37bc3ce87e855267024c975c4d136255d

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
SignatureAHlc+3EI248SijlUnHGqf/1XzhLwDczCVNQlPIjGV4SHeOgH5v7y5VFgWcwHTqQXemvws70JGWxLlxQMAUc1Cw==
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

2026-09-17T09:59:41.516627ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081641
observed a6c269073b987d82231d677d958778d0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:41.497546ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081641/manifest.json
observed cbd4b23b2aa8280309ffe9d0c13a83a3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:41.476990ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081641/publication.md
observed 687642f55b9a6b12477c08493612a89c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:41.460175ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081641/publication.txt
observed 3a3951e511036317c6bbd33d8156a081...
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.