OpenTechnical

OT-2026-000050529

Publication integrity record

Three cup vacuum gripper, three outlet manifold, pump fed, vented 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-2026-000050529) never changes.

Identity and time

Publication numberOT-2026-000050529 · never reused
Internal UUID01a0ae82-5c49-7131-93df-e586ae2e6faf · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:36:14.042293Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000050529
StatusPUBLIC

Content hashes

Canonical text603811a3b14e822c32873c5037f8d61c05839838e14b91d30daeb771634ff5e7
Markdown414232f93bc581ae58b640e989b33b343f1b82cd3798d6d48055608e4701909c
PDF
Publication page4934125b5bddc483ab016d7c5dc153bef6651eebfd3e546ffbb7c381c26fca3a
Manifest0855cfceb450e54313c0a456bf7703c0e7037dad1d78cba0ffab655e027b11cf

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
Signatured6Uc6+9q2sXWVvUODaY9UZXqnzur2XE6Bi/O86GXblnheV7Hq1rixJ21DI/a6I8RS+yuCmCNetGB0ugQiD6yAw==
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

2026-09-17T11:01:37.440312ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050529
observed 4934125b5bddc483ab016d7c5dc153be...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:37.423738ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050529/manifest.json
observed 0855cfceb450e54313c0a456bf7703c0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:37.407443ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050529/publication.md
observed 414232f93bc581ae58b640e989b33b34...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:37.390590ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050529/publication.txt
observed 603811a3b14e822c32873c5037f8d61c...
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.