OpenTechnical

OT-2026-000027172

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, pump fed, sustained blow-off 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-2026-000027172) never changes.

Identity and time

Publication numberOT-2026-000027172 · never reused
Internal UUID01a0ae72-3454-7e07-99f7-e1c89625e068 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:18:35.358864Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000027172
StatusPUBLIC

Content hashes

Canonical textdc9415220da6067f9b019efb2d80057bd0d270f1105c7f2f79c3054e5b1505f2
Markdowna2aae0b8be2fd079cd0adf3e73bfc38fd590c2a7088213d0fbef4eb0d56d0cb8
PDF
Publication paged5f0fb71112626c7a9254542fdb44261580c2533a22316d19af0cfc60041b635
Manifestd8e956ed708986c7c418b6fde16d040e14f2e0b5c11b12908b6407fff27e2242

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
SignatureB9bwU9a6Mp/ylFMM8cibS85M2qZVGRFIjbWr087o7il+65uz+yyS2JPMSa/yTq/j+0qHgETDBBJGsNYep3UtDg==
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

2026-09-17T11:43:57.344944ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027172
observed d5f0fb71112626c7a9254542fdb44261...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:43:57.324462ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027172/manifest.json
observed d8e956ed708986c7c418b6fde16d040e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:43:57.306756ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027172/publication.md
observed a2aae0b8be2fd079cd0adf3e73bfc38f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:43:57.288439ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027172/publication.txt
observed dc9415220da6067f9b019efb2d80057b...
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.