OpenTechnical

OT-2026-000056072

Publication integrity record

Single bellows cup vacuum gripper, plant vacuum fed, sustained blow-off after 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-2026-000056072) never changes.

Identity and time

Publication numberOT-2026-000056072 · never reused
Internal UUID01a0ae87-0a4b-7786-8a62-e7215b455723 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:41:20.734835Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000056072
StatusPUBLIC

Content hashes

Canonical text46fffc71137254ec02161188b8b0d10a513b537b57885d8c9b437ab7334b5cff
Markdown97f5000e60cd02eba41d788eab4b1c4ad22bff245df4cbf83ab6433051d9145c
PDF
Publication page44c8a6702bc72b2098013118eaa88da0ed845feec722816cd2c7410eeee86c21
Manifest33aa1f5611e9294415ab949676c07e3aca398436e06c145eef848e0ef38f0c86

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
SignatureTeksavFDlr+kuwC7i5F9bjfpjerA1hpyx0jOl2NbKZ0hhV1tBCzQdhYAFK+eyc6T4XgsF8pPx7+ikZcGqGjdBg==
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...
timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T10:51:14.915871ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056072
observed 44c8a6702bc72b2098013118eaa88da0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:14.899670ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056072/manifest.json
observed 33aa1f5611e9294415ab949676c07e3a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:14.883584ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056072/publication.md
observed 97f5000e60cd02eba41d788eab4b1c4a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:14.867027ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056072/publication.txt
observed 46fffc71137254ec02161188b8b0d10a...
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.