OpenTechnical

OT-2026-000013937

Publication integrity record

Six cup vacuum gripper, six outlet manifold, common isolation valve, pump fed, pulsed 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-2026-000013937) never changes.

Identity and time

Publication numberOT-2026-000013937 · never reused
Internal UUID01a0ae6d-8dea-7e23-b03f-f03fa3e0193d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:30.489074Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000013937
StatusPUBLIC

Content hashes

Canonical text645bdb64dae3bcbb73ee51cf7640839122078d693bb1cf8017c654cc59947495
Markdown055250f999b4a19c846fab0cb2b5906cb0cffc5aed3ce4531b6c1ad750113acb
PDF
Publication pagef45bf302d0c34f95b6177ba41036ce2464585cb87e7060dc130ab02621237ab8
Manifest6f2baf301b63101dcaf53f3bde9e616111064fcc203b405b70bbe8848c8625a1

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
SignaturecxK9RCjpDuRY6352+xrGaOnhfuAMMvT8VLbwd6bdvURPTZCM8gr6GScpVJWKnsgFvI2o/JqK2Yz01F5I8jV1Cg==
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

2026-09-17T12:09:04.586578ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013937
observed f45bf302d0c34f95b6177ba41036ce24...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:04.563446ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013937/manifest.json
observed 6f2baf301b63101dcaf53f3bde9e6161...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:04.539739ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013937/publication.md
observed 055250f999b4a19c846fab0cb2b5906c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:04.520008ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013937/publication.txt
observed 645bdb64dae3bcbb73ee51cf76408391...
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.