OpenTechnical

OT-2026-000005927

Publication integrity record

Bellows cup vacuum gripper, four zone face, three stage ejector

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-2026-000005927) never changes.

Identity and time

Publication numberOT-2026-000005927 · never reused
Internal UUID01a0a949-76b8-7028-8068-7503b5799156 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:15:59.162837Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000005927
StatusPUBLIC

Content hashes

Canonical text685eb59e1d6bd82b8555fe60e51849239a4242995f16ff0441bcfe048f391700
Markdownad8f4dd9139c7202a76f6441305c08a7cfa6a8e70e4cf55f98ff05bb57669f98
PDF
Publication pagee85afcd25c3fb0bb1e59692a8b4ebb5091dba87cefc02ca3b0186c5544f1c54a
Manifest28298443210d9ccbacd6086d84d336e18cb4bfd422177c9073a8f6daf521b8c2

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
Signaturey/3EKYgkSeoj+1NKGg5wE9phF+f9lSohE8e4wel7aNNCnfIV/4t2OCaV5087wxFHPSf1C83yFAcEjd15NxSmAw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:27:03Z
batch OT-TS-2026-W38-012 · RFC 3161 token · inclusion proof
root dbe93cb6b2158496df2f60f3b6822537...

Independent retrieval

2026-09-16T08:20:16.467358ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005927
observed e85afcd25c3fb0bb1e59692a8b4ebb50...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:16.451684ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005927/manifest.json
observed 28298443210d9ccbacd6086d84d336e1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:16.436638ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005927/publication.md
observed ad8f4dd9139c7202a76f6441305c08a7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:16.422703ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005927/publication.txt
observed 685eb59e1d6bd82b8555fe60e5184923...
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.