OpenTechnical

OT-2026-000076615

Publication integrity record

Three bellows cup vacuum gripper, three zone face, per zone isolation, pump fed, pressure sensor per zone, pulsed 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-2026-000076615) never changes.

Identity and time

Publication numberOT-2026-000076615 · never reused
Internal UUID01a0ae94-b06e-7a11-8184-825707a796b4 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:15.236414Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000076615
StatusPUBLIC

Content hashes

Canonical texta7127c01b286f0ff09ef51d014a3748fce5caa3704167903c0b20a5b928fdbd1
Markdown53ea17be1ed3b54f7efde836c7267c859dd8092f4b34ff17e4a1a8d25d615458
PDF
Publication pagee1e139b5717dc68b62e34422d0ab1b721f59359d19a3f08efc812c97af21d6be
Manifest62d60fdd753b079bace3fd48db3d2265b1dfc58b6b7614ac331ee9a4b02fe4c0

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
Signature7MYgvZU2PCi3NvVxeBBUC6zDPkH3XUlMCt89YhKUlbDSbuzLHJhBpF2eA3GTKyV5iCG53Pg71wTh8uB9kOjSAg==
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

2026-09-17T10:09:20.518369ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076615
observed e1e139b5717dc68b62e34422d0ab1b72...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:20.498485ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076615/manifest.json
observed 62d60fdd753b079bace3fd48db3d2265...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:20.481819ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076615/publication.md
observed 53ea17be1ed3b54f7efde836c7267c85...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:20.462546ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076615/publication.txt
observed a7127c01b286f0ff09ef51d014a3748f...
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.