OpenTechnical

OT-2026-000081549

Publication integrity record

Two bellows cup vacuum gripper, two zone face, three outlet manifold, pump fed, 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-2026-000081549) never changes.

Identity and time

Publication numberOT-2026-000081549 · never reused
Internal UUID01a0ae97-0f71-72e3-aa4f-dc037878f10b · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:50.648824Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081549
StatusPUBLIC

Content hashes

Canonical textde697ba9d3c7dc42f5583a6e6be112407dff5148dc692f7d6f810489eb4059ca
Markdown80797c6772f23b7c3f386d18bb1e2f6187e146160af9ee3e88088a6cffb5e641
PDF
Publication page917d15f712d68eda350f77ed4ce9d55f29c9f9a8feeccedd16903036a8fb88c4
Manifest104804a3f15819a18cf7d34a0a6e70f0128f06cde24c53acf31960450e56f30a

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
SignatureoAf8aI2ibdkq8YY3/UF2dXSbffnlAP3gFzkTrFaxvWFpvOLsCgP9o6QaxsL1sIabsO5qmvIHIFOOc5FAH0UXCg==
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

2026-09-17T09:59:34.424318ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081549
observed 917d15f712d68eda350f77ed4ce9d55f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:34.406709ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081549/manifest.json
observed 104804a3f15819a18cf7d34a0a6e70f0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:34.389403ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081549/publication.md
observed 80797c6772f23b7c3f386d18bb1e2f61...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:34.373170ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081549/publication.txt
observed de697ba9d3c7dc42f5583a6e6be11240...
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.