OpenTechnical

OT-2026-000050718

Publication integrity record

Foam pad vacuum gripper, pump fed, vented 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-2026-000050718) never changes.

Identity and time

Publication numberOT-2026-000050718 · never reused
Internal UUID01a0ae82-c7b1-7447-8b58-6e2bcf6c729d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:36:41.548889Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000050718
StatusPUBLIC

Content hashes

Canonical text5d31a9130a9dab54a16b01fe23e4ffcbe7faf564ed135800c8d6c65cb37507c7
Markdown6b4c2866bccd99941a7d3e66df1694423c60803604cec702709dc257f1a0a2e0
PDF
Publication paged371e56539f07eaf4ff0c2d68793728070a03f644286df2bb095b23ff8809db6
Manifestd4d9d56d18a96008809f862063902186be4863ea731fbb7358809b58617c3874

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
Signature3x87eMnL1QW7zZkvnhIONatsT/nB541VjYRsWoAEIEHUxD7Mz96+Q0Vdes4yqMZ+TPkYCvJ+NVaSD2uPSgyeAA==
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

2026-09-17T11:00:04.588390ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050718
observed d371e56539f07eaf4ff0c2d687937280...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:00:04.567539ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050718/manifest.json
observed d4d9d56d18a96008809f862063902186...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:00:04.566157ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050718
observed d371e56539f07eaf4ff0c2d687937280...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:00:04.548655ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050718/manifest.json
observed d4d9d56d18a96008809f862063902186...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:00:04.547273ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050718/publication.md
observed 6b4c2866bccd99941a7d3e66df169442...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:00:04.530953ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050718/publication.txt
observed 5d31a9130a9dab54a16b01fe23e4ffcb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:00:04.527664ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050718/publication.md
observed 6b4c2866bccd99941a7d3e66df169442...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:00:04.508168ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050718/publication.txt
observed 5d31a9130a9dab54a16b01fe23e4ffcb...
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.