OpenTechnical

OT-2026-000029737

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, pump fed, supply line pressure sensor, sustained blow-off before set-down

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-2026-000029737) never changes.

Identity and time

Publication numberOT-2026-000029737 · never reused
Internal UUID01a0ae73-5e23-7b5a-9e98-6f40a983c428 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:51.545382Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000029737
StatusPUBLIC

Content hashes

Canonical text89b56bd481ecffcec20b24c07497d8ab7b7d211557359e4e593e7bf252d158d7
Markdown3f8ada2535c6ea44f66df00c1f552e78925f109c4f97bd15245c04b93bf8b06e
PDF
Publication paged892befe985ef4e5ebb5fa4976b78df67a11d47d511114235938cc7527ecc982
Manifest07755a00753b969c4b335756d9de01e5c6513b85c3224d23505808faaf9347b1

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
Signature3LSEdTkJVPyKrYxYw4S9zS/SAvnHEyuBpbVzaz/1HaD3PUQhy6tcN67kSMt8A/QNKpfzuzFAccr6EFuXFNspDA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

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

Independent retrieval

2026-09-17T11:39:29.651011ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029737
observed d892befe985ef4e5ebb5fa4976b78df6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:29.632799ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029737/manifest.json
observed 07755a00753b969c4b335756d9de01e5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:29.615191ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029737/publication.md
observed 3f8ada2535c6ea44f66df00c1f552e78...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:29.594557ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029737/publication.txt
observed 89b56bd481ecffcec20b24c07497d8ab...
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.