OpenTechnical

OT-2026-000028659

Publication integrity record

Three cup vacuum gripper, three zone face, per zone isolation, pump fed, pulsed 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-2026-000028659) never changes.

Identity and time

Publication numberOT-2026-000028659 · never reused
Internal UUID01a0ae72-e2f9-7031-99e4-2e149ce86b76 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:19.949572Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028659
StatusPUBLIC

Content hashes

Canonical text31097c77b0501bb0db91d9279ef998d9bddcfbf8f432dc59360001dfcbca36c8
Markdown29e98915d139fb5e3b5a479e50c80d2141b9c1790f8ea845d1c42a1445b0b64a
PDF
Publication paged7da6579473d984d4a1e31f90d57eae0cbaec9960619d934a4a488a35221ea2f
Manifest1de6394965520cbdc9704ac105f005c8c777237944c6a3ebd3c2b0a91d836245

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
Signaturerhvv8zWFsVoPfotoGbTEjGaNQ0Qf5OYYUuI8KOXRHw5l6Qetxkcpx9YqD8/SUINrLwgTK6d3Wij7TuhIvOcLAA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:41:32.291240ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028659
observed d7da6579473d984d4a1e31f90d57eae0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:41:32.273521ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028659/manifest.json
observed 1de6394965520cbdc9704ac105f005c8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:41:32.252431ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028659/publication.md
observed 29e98915d139fb5e3b5a479e50c80d21...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:41:32.222893ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028659/publication.txt
observed 31097c77b0501bb0db91d9279ef998d9...
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.