OpenTechnical

OT-2026-000059688

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, plant vacuum fed, sustained blow-off after 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-2026-000059688) never changes.

Identity and time

Publication numberOT-2026-000059688 · never reused
Internal UUID01a0ae89-ec24-7058-aea9-dcf49f3a7208 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:44:29.732559Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000059688
StatusPUBLIC

Content hashes

Canonical textddad29cafab0fdf1ac99d790823d7fc9a8534dfb9c955a14e056f1232f63cd4a
Markdown59971dc4665ea3e811ee731bbfb2f7d9b1b5e884c1ba7d62053211d0d3437b09
PDF
Publication page9f89bad6d5e9b404eca664a488bbc95fa32d8b361f40dc1c1a73724ea6b9930b
Manifest15a2f9b99b5c3904b57884c17166b883754f3e8c3d2b7d4140d79fba1a3b8ffc

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
SignaturedgHWFSsbfZewkORRpKVm8b8KZOtlkdbxPW4vMxB9+/DIJ8tgWcrSO84spY5LZUEeXcJdf0KMECQMyzLK0tm8DA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...

Independent retrieval

2026-09-17T10:44:23.684120ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000059688
observed 9f89bad6d5e9b404eca664a488bbc95f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:44:23.664554ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000059688/manifest.json
observed 15a2f9b99b5c3904b57884c17166b883...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:44:23.647300ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000059688/publication.md
observed 59971dc4665ea3e811ee731bbfb2f7d9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:44:23.629990ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000059688/publication.txt
observed ddad29cafab0fdf1ac99d790823d7fc9...
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.