OpenTechnical

OT-2026-000062494

Publication integrity record

Foam pad vacuum gripper, common isolation valve, pump fed, vented after 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-2026-000062494) never changes.

Identity and time

Publication numberOT-2026-000062494 · never reused
Internal UUID01a0ae8c-0ac0-7eed-bb5c-578bcd821475 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:46:48.542263Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000062494
StatusPUBLIC

Content hashes

Canonical text5541c137f5f2c64557f43c8c4b7d72fbfda465c339c2b804c7c5b5597317d990
Markdown802657372ed02df30f0b78709261eac12f3390183ab1a7150af2af892a7a2bd1
PDF
Publication page3ed6db6561487a6e25e949642a546e718805502bd6ee4a6ead9bca93aa37d879
Manifest0f6c8e9e87fab368a8b8d2abafc3bc519e1546fa15eae303e46754f5817ea40a

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
SignaturespoA+CnpS6tsPvaHRJNknkcN330H6Eu5qwDwRng8/6Gyhwa/cxOFzjEbMx6CqRvaNi2KXzVxjOYxD5EvF37rAA==
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

2026-09-17T10:39:51.303257ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000062494
observed 3ed6db6561487a6e25e949642a546e71...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:39:51.284468ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000062494/manifest.json
observed 0f6c8e9e87fab368a8b8d2abafc3bc51...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:39:51.262094ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000062494/publication.md
observed 802657372ed02df30f0b78709261eac1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:39:51.242355ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000062494/publication.txt
observed 5541c137f5f2c64557f43c8c4b7d72fb...
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.