OpenTechnical

OT-2026-000103581

Publication integrity record

Three cup vacuum gripper, three zone face, pump fed, pulsed 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-2026-000103581) never changes.

Identity and time

Publication numberOT-2026-000103581 · never reused
Internal UUID01a0aea4-e461-7bf4-adac-05f63d6719fa · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:13:57.105586Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000103581
StatusPUBLIC

Content hashes

Canonical textaac1e498c8c402313b65c71f1ced4de4f7a4ad9c1272351552cf4da7b7628403
Markdown393bc23f25754370a3ef8ab886e5c87875b316fb946fd8a67073ced599313b54
PDF
Publication page016741498be715e6efa2955ba5fa385b0b98ce8e13a2957ac176002f90880542
Manifest647e84f4fd449fa1b7ccd66842c9d76f35f544f47429cc7dba3be1862625c2c5

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
SignatureZPbmcm2AOI1I8FqAOI+00548v6Brn/J06GoVQKCFK7owCZBSposMV1f2wbfxSlBKcTdy1UH3WlJzxJcD9ERZDg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:27:04Z
batch OT-TS-2026-W38-023 · RFC 3161 token · inclusion proof
root 095d30148a2ef87d42d7818ebe7543f9...

Independent retrieval

2026-09-17T09:22:21.976894ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103581
observed 016741498be715e6efa2955ba5fa385b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:22:21.960709ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103581/manifest.json
observed 647e84f4fd449fa1b7ccd66842c9d76f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:22:21.942937ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103581/publication.md
observed 393bc23f25754370a3ef8ab886e5c878...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:22:21.926545ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103581/publication.txt
observed aac1e498c8c402313b65c71f1ced4de4...
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.