OpenTechnical

OT-2026-000005888

Publication integrity record

Porous face vacuum gripper, four zone face, common isolation valve, two stage ejector, closed cell

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-2026-000005888) never changes.

Identity and time

Publication numberOT-2026-000005888 · never reused
Internal UUID01a0a948-329e-72e1-8326-de0c5f09f3bc · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:14:36.193298Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000005888
StatusPUBLIC

Content hashes

Canonical textaf09e035014a8c135b1c88cd5f8e5c54a3890da46a28b25bdb4e3998b7565498
Markdown56cdd0b7f48552921bb958530d6a5734a41e1dd5ddff585f72cc7a12dfa8c038
PDF
Publication page2aabbffe8d317f7edc51de9b30649d708b8025bd9a8ff50654da4a389dcc282e
Manifest8a69a465b087746af3e141c8740660b7daabeceed1865477f9564bc2aeb77459

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
SignatureRSbfilrZdfACRPyM0koeMymVj0ULVxqIygzzZd9uSICu8iqVwVoFDU2aoINQvuW84aotjAbWJwKJObrjiiKbCg==
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

2026-09-16T08:20:21.233284ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005888
observed 2aabbffe8d317f7edc51de9b30649d70...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:21.214125ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005888/manifest.json
observed 8a69a465b087746af3e141c8740660b7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:21.200037ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005888/publication.md
observed 56cdd0b7f48552921bb958530d6a5734...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:21.183275ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005888/publication.txt
observed af09e035014a8c135b1c88cd5f8e5c54...
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.