OpenTechnical

OT-2026-000013681

Publication integrity record

Three cup vacuum gripper, three outlet manifold, common isolation valve, pump fed, pulsed blow-off before set-down

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-2026-000013681) never changes.

Identity and time

Publication numberOT-2026-000013681 · never reused
Internal UUID01a0ae6d-8de8-7576-b381-a54b3a1f19ee · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:30.489074Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000013681
StatusPUBLIC

Content hashes

Canonical text1345aeff6c6a44e318d5d05a84879bb82f677cf3fa389c12ed4b3ef132a14ede
Markdowndaac9311e0f00bb55fe3036a975a83f21ecb371772aaf6798d1bf20fc4f50401
PDF
Publication paged3421b6ce12ed1fc42d9995400fd3b1783cdb808f4101718b4b0502c3a8c5655
Manifestb946970e317b9760d5a3b8a2e40533df9f22e3f0f9a3c2345131850bb2d7fa1c

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
SignatureBHl4CyhcD6i6xyXOU/VuUYgCRO+4azvi0/4fRZfqoErMT9W3Y2L69KZB6SZrR/X5bBwoE6OF+OGSUzlEXyzkCg==
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

2026-09-17T12:08:37.767588ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013681
observed d3421b6ce12ed1fc42d9995400fd3b17...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:08:37.749038ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013681/manifest.json
observed b946970e317b9760d5a3b8a2e40533df...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:08:37.731132ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013681/publication.md
observed daac9311e0f00bb55fe3036a975a83f2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:08:37.712682ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013681/publication.txt
observed 1345aeff6c6a44e318d5d05a84879bb8...
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.