OpenTechnical

OT-2026-000048167

Publication integrity record

Three bellows cup vacuum gripper, three zone face, common isolation valve, pump fed, pressure sensor per zone, pulsed 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-2026-000048167) never changes.

Identity and time

Publication numberOT-2026-000048167 · never reused
Internal UUID01a0ae80-4de2-7147-9290-9c97caaa6c14 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:33:59.290761Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000048167
StatusPUBLIC

Content hashes

Canonical text9b3a81d611474150ad80336029ab0cc3799a3a6fa81d4a1c51790750f7a12ce7
Markdownd7219d10f8de4081f30c30fe045b9623dfc0cfb9fb60167e49af97420861319a
PDF
Publication page99ff40ef9b1920419f855575c75fd138d07f20f4c978f843c8fe2d991f5c3057
Manifest42385e2078ba8c9e42f8e8ab4cc53c5015466dfe7b59bc6311d280d7c9d5768d

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
SignatureTF1bZahAZWJF9snwo2iOnMDVPrv0lhCieLECYoY7H93AiaoiDSN+nTwGswtyXF1guLpjaV2v6CdUiWMlS6oSDA==
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

2026-09-17T11:04:42.010911ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048167
observed 99ff40ef9b1920419f855575c75fd138...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:04:41.993565ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048167/manifest.json
observed 42385e2078ba8c9e42f8e8ab4cc53c50...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:04:41.975545ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048167/publication.md
observed d7219d10f8de4081f30c30fe045b9623...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:04:41.956573ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048167/publication.txt
observed 9b3a81d611474150ad80336029ab0cc3...
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.