OpenTechnical

OT-2026-000081072

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, two stage ejector, manifold pressure sensor, vented after 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-2026-000081072) never changes.

Identity and time

Publication numberOT-2026-000081072 · never reused
Internal UUID01a0ae96-b976-7434-b485-1c317b603344 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:28.739380Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081072
StatusPUBLIC

Content hashes

Canonical text1fc619534d6564a06f2531ea0963a46d05c8b3413999ac43604ee54b064fe5b6
Markdownd7c2750369736721542ac52686de6f3f180f9e8c02b59868f9a4bb534a75a9d9
PDF
Publication pageb5333b20651692cedc41318f7625b6d45476d3c0151f5ade5a7e2ceef4202219
Manifestf59cc478429a19539d9d252e4964c58bba81c88029612256761a7d87965c6364

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
SignatureRYCFQ4ZvRjI2FhJdl4N5L1xeQo6+uAWiSqbG8jphQ19QBuZUrOIVAtwgfMfJTx2eLY0mGdzEU+BVcFHXw3B1Cg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:02:22.236443ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081072
observed b5333b20651692cedc41318f7625b6d4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:22.219150ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081072/manifest.json
observed f59cc478429a19539d9d252e4964c58b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:22.202364ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081072/publication.md
observed d7c2750369736721542ac52686de6f3f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:22.184985ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081072/publication.txt
observed 1fc619534d6564a06f2531ea0963a46d...
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.