OpenTechnical

OT-2026-000050870

Publication integrity record

Foam pad vacuum gripper, common isolation valve, 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-2026-000050870) never changes.

Identity and time

Publication numberOT-2026-000050870 · never reused
Internal UUID01a0ae82-c7b2-7c74-8417-599706fd2373 · 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-2026-000050870
StatusPUBLIC

Content hashes

Canonical textabc8f00af878205bdd15f87834e35cefd0f6b8e5c7122f15c3c759722583e7dd
Markdown53888a40fe608bb7fca27f0541d3a89aa119a89ac11fad4b3bfa972886f9fab7
PDF
Publication page2d3fc3def9a05ac25069ec99bfc566212d200b621d00fc868ae49cc7c1023a20
Manifest9b699ec9a748f7f084ae314b9e37b2427039c0018b2f7f615f5345dab8305ed2

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
SignaturehukkGZN53qIj++WUwG4YWO+ZMUx7xjmybou0MUJAg5/y3BUkZ3cNcLrEbQCLTnjckOKleuyzOmSUY5rJXpJUDw==
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

2026-09-17T11:00:35.838786ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050870
observed 2d3fc3def9a05ac25069ec99bfc56621...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:00:35.821210ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050870/manifest.json
observed 9b699ec9a748f7f084ae314b9e37b242...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:00:35.797087ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050870/publication.md
observed 53888a40fe608bb7fca27f0541d3a89a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:00:35.788546ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050870
observed 2d3fc3def9a05ac25069ec99bfc56621...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:00:35.775402ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050870/publication.txt
observed abc8f00af878205bdd15f87834e35cef...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:00:35.764479ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050870/manifest.json
observed 9b699ec9a748f7f084ae314b9e37b242...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:00:35.744627ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050870/publication.md
observed 53888a40fe608bb7fca27f0541d3a89a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:00:35.722193ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050870/publication.txt
observed abc8f00af878205bdd15f87834e35cef...
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.