OpenTechnical

OT-2026-000081109

Publication integrity record

Foam pad vacuum gripper, four 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-2026-000081109) never changes.

Identity and time

Publication numberOT-2026-000081109 · never reused
Internal UUID01a0ae96-b977-7eef-b1fc-b335b67023e4 · 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-2026-000081109
StatusPUBLIC

Content hashes

Canonical textd756e592dd8e6d727ba1c9c7a2949c34a89b196f5a0f887e7a19ba5f97dad395
Markdown6d387b73f64aad82422b400a5a8e681946b33b3822ccc70ec30b5fb8f3fd30fc
PDF
Publication page19b53b4332357686d23aae7e89e17964fb1b888ed702dda834d5abfc8a675c14
Manifest9a26bb15573d31b01fdfec0490c79c9a3622a3b5899133ba172825626d70434e

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
SignatureOhITID0U7CtQXDNqtjSXvtuqo+EUMY7FhLlAnA5YeGcvuB+kvckfkhqT5UVfE0nhjFp97HAV4w080Ndp38e0Bw==
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

2026-09-17T10:02:25.023921ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081109
observed 19b53b4332357686d23aae7e89e17964...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:25.005801ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081109/manifest.json
observed 9a26bb15573d31b01fdfec0490c79c9a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:24.987600ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081109/publication.md
observed 6d387b73f64aad82422b400a5a8e6819...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:24.969048ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081109/publication.txt
observed d756e592dd8e6d727ba1c9c7a2949c34...
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.