OpenTechnical

OT-2026-000061457

Publication integrity record

Single cup vacuum gripper, plant vacuum fed, vented after 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-2026-000061457) never changes.

Identity and time

Publication numberOT-2026-000061457 · never reused
Internal UUID01a0ae8b-7b43-7801-b901-cd469d4e53bb · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:46:11.808334Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000061457
StatusPUBLIC

Content hashes

Canonical text4c22e591adc33790893cb390a672b09bfb36b1863701c5ff25f6ed56201ae8ab
Markdown4c41542284e1763692abd5c9bd18190f2cf2041b37ea1a2cfca454b8eca801ac
PDF
Publication page81585c52d422a2117d4df678b77a990e9a69e072434f9fd12fef7db574ce2f48
Manifest9797e7ae5c1e092cedcdaa89f803ffa11603cee736584eeaa4c10485a41e87ad

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
SignatureLfqNSsMeY261PwVqZv5ufYsaYNWhAuLk00jyH0+ROBe5EaUN/9lI8Ab/mOY8G2fykfEzyvXaS0Qn0Z1/jWuoDg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...

Independent retrieval

2026-09-17T10:41:20.409375ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061457
observed 81585c52d422a2117d4df678b77a990e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:41:20.392995ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061457/manifest.json
observed 9797e7ae5c1e092cedcdaa89f803ffa1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:41:20.376228ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061457/publication.md
observed 4c41542284e1763692abd5c9bd18190f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:41:20.359048ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061457/publication.txt
observed 4c22e591adc33790893cb390a672b09b...
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.