OpenTechnical

OT-2026-000061734

Publication integrity record

Four pad foam vacuum gripper, four outlet manifold, pump fed, vented 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-2026-000061734) never changes.

Identity and time

Publication numberOT-2026-000061734 · never reused
Internal UUID01a0ae8b-b8aa-79b4-8d1e-34c356c59529 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:46:27.528336Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000061734
StatusPUBLIC

Content hashes

Canonical texta088912020e718b3a707a493aaaa3752c6d0c5dc42bac3f22e9d2069c1e923e7
Markdownf3e1ab96947c415e019f80531041b0e39de557200b57f53353f68cd5d447298c
PDF
Publication page1b9f4bdc018062482f2c41ede0b62ece799ceddb77b4e6d3c0f462687d4a180d
Manifest19e87f4b48e670159f23aa1300b04bbc3f877c581f3dd4ec2b464c6d864b6603

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
Signature4dVflRGlzigv1FqpeFYeR+/+mCj9hz9uhXnsfA0FUuh0bbMJkPOVV3KPkUJCfAnPW7N/EC0nF/AC2IWCGNStDw==
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

2026-09-17T10:40:19.158409ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061734
observed 1b9f4bdc018062482f2c41ede0b62ece...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:40:19.111569ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061734/manifest.json
observed 19e87f4b48e670159f23aa1300b04bbc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:40:19.089296ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061734/publication.md
observed f3e1ab96947c415e019f80531041b0e3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:40:19.065490ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061734/publication.txt
observed a088912020e718b3a707a493aaaa3752...
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.