OpenTechnical

OT-2026-000081997

Publication integrity record

Foam pad vacuum gripper, two zone face, four outlet manifold, pump fed, sustained 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-2026-000081997) never changes.

Identity and time

Publication numberOT-2026-000081997 · never reused
Internal UUID01a0ae97-4d91-7de9-9eca-fc9fc5384007 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:59:06.536388Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081997
StatusPUBLIC

Content hashes

Canonical text814b0e9d88ebd20c1cfba3840b5675689b56451c47560272e7c17a7de9633b5f
Markdown852374e118242db8c60148b2cf3e52517f9a383d3cd6b692b65e8abab4fc7c37
PDF
Publication page80a0693827088662f452624d1280d957e27a884215b4c0826167b87225d9d9bb
Manifest032475b596c8e05c0588b05ed220e59da84905fb9446736d0a96bf83d76e2a8b

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
SignatureY3NJuprAdc8lnksWVXQQT6H53TOmqBzTsXI7YjcK1OaLlfVuImwX7zQighzUYrydPs7DwNiEju0BjmKYs8JJAA==
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

2026-09-17T09:58:42.438406ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081997
observed 80a0693827088662f452624d1280d957...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:58:42.419884ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081997/manifest.json
observed 032475b596c8e05c0588b05ed220e59d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:58:42.401772ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081997/publication.md
observed 852374e118242db8c60148b2cf3e5251...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:58:42.383794ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081997/publication.txt
observed 814b0e9d88ebd20c1cfba3840b567568...
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.