OpenTechnical

OT-2026-000081079

Publication integrity record

Four bellows cup vacuum gripper, four zone face, common isolation valve, 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-2026-000081079) never changes.

Identity and time

Publication numberOT-2026-000081079 · never reused
Internal UUID01a0ae96-b976-718b-abb6-9888bca26e83 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:28.739380Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081079
StatusPUBLIC

Content hashes

Canonical text7edb937fbc04861df9a3f14f1aa0faef0b36d30b96b13fed750d1e52e1c4026f
Markdown2eed3757bb2b1414f7ed3838c80bbf32e0a0fdafd1540efca8d9d59ce4194ffe
PDF
Publication page08a91b49127baf53430033bb9a4ef9eea7a5f29193e107c1ff547692406969ef
Manifesta6e16b1aaf1c55245189ecccffd57c6d37e4d2cb9625f32df73b00c26772dd0d

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
SignatureXbtbjSCK0zCIskV5Y6VpVBvRsb1Z4DBEA+EldK/aIso83jdsOjXoC/Gob27WCNBR48jtYvoW+ED1jbE4nVmrCQ==
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

2026-09-17T10:02:22.762953ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081079
observed 08a91b49127baf53430033bb9a4ef9ee...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:22.746355ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081079/manifest.json
observed a6e16b1aaf1c55245189ecccffd57c6d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:22.729031ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081079/publication.md
observed 2eed3757bb2b1414f7ed3838c80bbf32...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:22.712274ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081079/publication.txt
observed 7edb937fbc04861df9a3f14f1aa0faef...
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.