OpenTechnical

OT-2026-000043709

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, pump fed, sustained blow-off after 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-2026-000043709) never changes.

Identity and time

Publication numberOT-2026-000043709 · never reused
Internal UUID01a0ae7b-92d1-7b26-ada3-ffc48fa3a253 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:28:49.254972Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000043709
StatusPUBLIC

Content hashes

Canonical text1b28552d7ca9013c840d5a68dbfdcf2e8252cce94913b7c2c73fc027f7b29c6b
Markdown2502bfb43166cbf1b1dfab70abdeb5f93cf1745c9dabcab47e5b7b0c75c43e5a
PDF
Publication page86186fdc5d0a137d65859c06765586f1f494ae6287fad5d4a3e8dcaa85941e3a
Manifest0a57e2957d2e8e3e68380c18dd143f40776eef6eb04870c89621af455f6e2371

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
Signature13Mboh4FqV2+QQjmgaM9j8Aw5EwAiGZKApmXDXjw59ai1wCqFfL//sheGMcmvWbqwVFQH0Z/3YccY7xfDtrHAA==
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

2026-09-17T11:13:12.447087ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043709
observed 86186fdc5d0a137d65859c06765586f1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:12.430359ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043709/manifest.json
observed 0a57e2957d2e8e3e68380c18dd143f40...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:12.411144ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043709/publication.md
observed 2502bfb43166cbf1b1dfab70abdeb5f9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:12.393921ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043709/publication.txt
observed 1b28552d7ca9013c840d5a68dbfdcf2e...
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.