OpenTechnical

OT-2026-000091804

Publication integrity record

Three bellows cup vacuum gripper, three zone face, four outlet manifold, pump fed, pressure sensor per zone, 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-2026-000091804) never changes.

Identity and time

Publication numberOT-2026-000091804 · never reused
Internal UUID01a0ae9d-43ba-73de-a80f-8409cc1e55cf · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:37.256105Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091804
StatusPUBLIC

Content hashes

Canonical text1937f651cc4e55003b1a3f512b09843b67a6c825f1274a8ac460370436dcfc96
Markdown3a6313a8a92a7894d4de4f4e96469aa12342ec92f6e1253da7aa80bac509c85f
PDF
Publication page8b1438a4b185b70c779b78afbbe373291d7510875b19f4c477bceb75268601a9
Manifest36d450e78ae54fdd4c903ccb4cd32a7a11a7095e2c40abee34404165cb47ef0b

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
SignaturejBuAOpwenkrqKoec6SPL2Xcp6/jY52UhBFoIkfpA8bfQksFxg8TOPmro7guWAgfD8FpxKuCz2Dr1f1RKEcEQCg==
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

2026-09-17T09:42:42.334967ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091804
observed 8b1438a4b185b70c779b78afbbe37329...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:42.318504ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091804/manifest.json
observed 36d450e78ae54fdd4c903ccb4cd32a7a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:42.301587ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091804/publication.md
observed 3a6313a8a92a7894d4de4f4e96469aa1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:42.284378ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091804/publication.txt
observed 1937f651cc4e55003b1a3f512b09843b...
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.