OpenTechnical

OT-2026-000077503

Publication integrity record

Four bellows cup vacuum gripper, four 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-2026-000077503) never changes.

Identity and time

Publication numberOT-2026-000077503 · never reused
Internal UUID01a0ae94-f50a-71c7-a933-90499d127c93 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:32.796581Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000077503
StatusPUBLIC

Content hashes

Canonical text252a79d751240215d4e0be90d5ec9361391d0bc67ecfef0392adab1724fca784
Markdownf0cbb5f34c370ee3887969d8e083e4d06a0ec21b84b9851d1c305f5bcc6edc02
PDF
Publication page13d47bf4f2c471f6103933573d3c18dc56aaac158c5dafa95efefd53743c8e18
Manifest50bb21c4bf25d8b1c4b94aaea7be9321fc729a93bcd44102c4fb988755271d31

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
SignaturelYC+3WyXQwhWhFGmKD3Tw2tG/g97STp5FUDdAy6Xtjjg1Gz7U1ZhI8h5rjdADE+Lg9jEuhhMvwxyHtKy1+PSDg==
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

2026-09-17T10:09:11.617302ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077503
observed 13d47bf4f2c471f6103933573d3c18dc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:11.597414ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077503/manifest.json
observed 50bb21c4bf25d8b1c4b94aaea7be9321...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:11.577777ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077503/publication.md
observed f0cbb5f34c370ee3887969d8e083e4d0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:11.559184ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077503/publication.txt
observed 252a79d751240215d4e0be90d5ec9361...
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.