OpenTechnical

OT-2026-000007641

Publication integrity record

Two bellows cup vacuum gripper, two outlet manifold, common isolation valve, pump fed, sustained blow-off 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-2026-000007641) never changes.

Identity and time

Publication numberOT-2026-000007641 · never reused
Internal UUID01a0ae62-76bd-7a85-be6c-e55d831e190d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:01:23.688458Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000007641
StatusPUBLIC

Content hashes

Canonical text3aea8c60252a70aad25398be0767dd4aa58530bde4417b3c47b729d6f73fd164
Markdown131c6544b91bf14fb3740c29202bb854085fc898beba8171792f37983ff48b9c
PDF
Publication page823b0404adf18deff9a1145ba82ba47e0cf0ba888777a1cd11314801e20c51e9
Manifest0b398102baebdfa18e97c85ba7e7bc0b90c3e0165a076fdf5fc7e6754aa7e56b

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
SignatureXwiIzo3L4eiFltX4LAXCjRIJcs2WUjhSwDAPNYKikGERibBo8e5TwUAbogJIporu5F8gcAOCXOS3RTyAPZSoAQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:07:02Z
batch OT-TS-2026-W38-016 · RFC 3161 token · inclusion proof
root 8d90bf9341d96baa4328c218b6f85281...

Independent retrieval

2026-09-17T08:10:15.565697ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007641
observed 823b0404adf18deff9a1145ba82ba47e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:10:15.548184ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007641/manifest.json
observed 0b398102baebdfa18e97c85ba7e7bc0b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:10:15.529985ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007641/publication.md
observed 131c6544b91bf14fb3740c29202bb854...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:10:15.513325ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007641/publication.txt
observed 3aea8c60252a70aad25398be0767dd4a...
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.