OpenTechnical

OT-2026-000057917

Publication integrity record

Three cup vacuum gripper, three outlet manifold, pump fed, supply line pressure sensor, vented before 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-2026-000057917) never changes.

Identity and time

Publication numberOT-2026-000057917 · never reused
Internal UUID01a0ae88-6ed9-7f2b-a29b-e132541303f0 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:42:52.020108Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000057917
StatusPUBLIC

Content hashes

Canonical text4a58a964dce53b70b860887701bd1e0e07a9a173aec7a5715482ad10b52ee740
Markdown83b06ad6f964a1b93778cff0651b5915c66bd96556cf1a067e42d9a055771edf
PDF
Publication paged12989e1614658ac890c7933dae9c205537799c371860984a4c879ed1c61d2d5
Manifest03851d325336e93953020c9112903fa5b8f436b94134be190ae870706af3d29c

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
SignaturedRpNJ3T+uZKCY38yO8YKoOCs1oSLDV7sb35K3h4WFUa9NdzQa/nJ/bUy6VDcPhIV3FzUnhYVOR13OK7j29RwDA==
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

2026-09-17T10:47:30.143643ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057917
observed d12989e1614658ac890c7933dae9c205...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:30.124789ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057917/manifest.json
observed 03851d325336e93953020c9112903fa5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:30.085178ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057917/publication.md
observed 83b06ad6f964a1b93778cff0651b5915...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:30.068974ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057917/publication.txt
observed 4a58a964dce53b70b860887701bd1e0e...
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.