OpenTechnical

OT-2026-000061449

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-2026-000061449) never changes.

Identity and time

Publication numberOT-2026-000061449 · never reused
Internal UUID01a0ae8b-7b43-79fa-b77a-93c9c6738a34 · 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-2026-000061449
StatusPUBLIC

Content hashes

Canonical text8ec1e873e3c3f5b535c6926e4f81cb562e12e84a4a2bfe5b5d96d54d3967076b
Markdownc6288a6059da1242ee4cff779ad2e9165c743750e06a9bc0cbaaa1e1ab7c4a5b
PDF
Publication page896edc32d95ff940190ffcd6be6c7ee5bb932d5302142f294418064c5c98c43a
Manifest4b427bac80566a286f40784c7e7086dd5d77748a2e8b00c1ec8a06f7a8b17ffe

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
SignatureMCHLTrCmKDCZ/9IVBUa0g5VodtKG3lRct+QzxEqOdkg4SGSo2uNYuT+F+MuHm0vqWn5a4UHr5nfHkwnt8Hi5CA==
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

2026-09-17T10:41:19.819556ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061449
observed 896edc32d95ff940190ffcd6be6c7ee5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:41:19.800547ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061449/manifest.json
observed 4b427bac80566a286f40784c7e7086dd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:41:19.782589ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061449/publication.md
observed c6288a6059da1242ee4cff779ad2e916...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:41:19.763784ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061449/publication.txt
observed 8ec1e873e3c3f5b535c6926e4f81cb56...
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.