OpenTechnical

OT-2026-000049539

Publication integrity record

Two cup vacuum gripper, two zone face, three outlet manifold, pump fed, pressure sensor per zone, 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-2026-000049539) never changes.

Identity and time

Publication numberOT-2026-000049539 · never reused
Internal UUID01a0ae81-8f7d-73a9-9fd8-03143487f57f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:35:21.728203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000049539
StatusPUBLIC

Content hashes

Canonical texteb326f5ab6b5897997aa84a5403da587b7f98e44489066beb7c01939e804a7c4
Markdowne8b821823ccdf731587be0c86a04f2c3df14e8b138770f9b27ec1e1047726baf
PDF
Publication page5a74ffd45323d4061ab1b982ea04e669758fbdcce9c0b868857d5ad1891d49dd
Manifest17b678e001a756103af954eb01b91bdb35628bc5c520f26e2476df1eab0992be

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
Signaturea+wx8SgYlrvCletXGdMvd8E25DINut/s0f7jYQo0OGjfAgV5ah/yCSJn+n6scoq4uBE7CYtJXX7EcwBMapQ5BQ==
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

2026-09-17T11:02:24.267916ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049539
observed 5a74ffd45323d4061ab1b982ea04e669...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:24.249967ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049539/manifest.json
observed 17b678e001a756103af954eb01b91bdb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:24.230686ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049539/publication.md
observed e8b821823ccdf731587be0c86a04f2c3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:24.211202ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049539/publication.txt
observed eb326f5ab6b5897997aa84a5403da587...
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.