OpenTechnical

OT-2026-000006553

Publication integrity record

Bellows cup vacuum gripper, four outlet manifold, pump fed, vented before set down, plastic cups

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-2026-000006553) never changes.

Identity and time

Publication numberOT-2026-000006553 · never reused
Internal UUID01a0a95f-3564-74f6-8ead-8a47d83ad650 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:39:44.230748Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006553
StatusPUBLIC

Content hashes

Canonical text389ab30bda80f0f64114b6e8cf99c546f1cea4fb3cf7f86b94e3abaa51940dac
Markdownf22dc57907b34c020c5de6f988a73080c80d62fd91fc703238cf7e624ac9f174
PDF
Publication page6fc43c03af1eeb320710e0b543ac669f895737ad032e25777fb7e6c752e31d01
Manifest572a5ba7c6c371b26e970d8f4127e85e435237b0d7235b892ed497749acf63e9

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
SignatureFFHGGUmX01YH3l6bmPv2EpVS+0CGdj2bla1T/XZ/JPgM2Pq/Ogfqdp9mACxbjOOa/b6eF03ftSEUYm+BwL5dCw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:47:03Z
batch OT-TS-2026-W38-013 · RFC 3161 token · inclusion proof
root e368e9c5ab06dc5cb1b0682dd54c11f5...

Independent retrieval

2026-09-16T08:40:03.874691ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006553
observed 6fc43c03af1eeb320710e0b543ac669f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:40:03.734433ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006553/manifest.json
observed 572a5ba7c6c371b26e970d8f4127e85e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:40:03.720581ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006553/publication.md
observed f22dc57907b34c020c5de6f988a73080...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:40:03.707355ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006553/publication.txt
observed 389ab30bda80f0f64114b6e8cf99c546...
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.