OpenTechnical

OT-2026-000080981

Publication integrity record

Three cup vacuum gripper, three zone face, common isolation valve, plant vacuum 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-2026-000080981) never changes.

Identity and time

Publication numberOT-2026-000080981 · never reused
Internal UUID01a0ae96-b975-7950-aeb4-3d7b08246ab1 · 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-2026-000080981
StatusPUBLIC

Content hashes

Canonical textcc8b07827174847f399feba3db454b03eacaf77bb8da61275e243a7e8b9c9090
Markdown843e8074765cda661705c94985a18fb317afaf24791e2e1445def0b282bd9929
PDF
Publication pagee0f2a5aee88056b98c47efffe3ccf3a301fde8b7a3f08c353f748f6046a65426
Manifest5f7e318ba599bfa4dcd45fb4eda70966c5bf12f2138ee2391c2f68996247ec8d

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
SignatureTm8YNtAkSleUEmFJxelL4bLKnJlHGnVXb8QTJFLTPBWCA21YDdcwIU9O31xj698iN5I/6vlyXMp8sbxEUirdDQ==
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

2026-09-17T10:02:15.876813ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080981
observed e0f2a5aee88056b98c47efffe3ccf3a3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:15.860857ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080981/manifest.json
observed 5f7e318ba599bfa4dcd45fb4eda70966...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:15.840562ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080981/publication.md
observed 843e8074765cda661705c94985a18fb3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:15.820497ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080981/publication.txt
observed cc8b07827174847f399feba3db454b03...
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.