OpenTechnical

OT-2026-000052981

Publication integrity record

Two cup vacuum gripper, two outlet manifold, common isolation valve, plant vacuum fed, vented before 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-2026-000052981) never changes.

Identity and time

Publication numberOT-2026-000052981 · never reused
Internal UUID01a0ae84-a430-7720-be37-0d56a7f88e60 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:38:43.524202Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000052981
StatusPUBLIC

Content hashes

Canonical text9f783a3a931e705abfd1712e9098aee97c3761770b530f59b81baad079ec69af
Markdownae0705f3c9f7c50bc870b42fafd6c56a1746aab5b079f9e6646fb749c9ae22ef
PDF
Publication pagefee140b8fcdec428bf6fa6a30f864bbf1f2774e9d240ed187e57ebc494d2efb8
Manifest15323e0ee094794241763096689e7d476c6edde4f847c0a4a368a143f408cbcd

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
SignaturexzO9/neu2/v6nSAFPb+zt15agiZyT3d+N7gi9jpCBZrhDeGE1rN9sC5wEF6IU7yFVAIkp5R5biC6ilAfPbuuAA==
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

2026-09-17T10:56:40.253045ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000052981
observed fee140b8fcdec428bf6fa6a30f864bbf...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:56:40.233943ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000052981/manifest.json
observed 15323e0ee094794241763096689e7d47...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:56:40.199033ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000052981/publication.md
observed ae0705f3c9f7c50bc870b42fafd6c56a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:56:40.165390ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000052981/publication.txt
observed 9f783a3a931e705abfd1712e9098aee9...
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.