OpenTechnical

OT-2026-000086052

Publication integrity record

Three bellows cup vacuum gripper, three zone face, per zone isolation, 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-2026-000086052) never changes.

Identity and time

Publication numberOT-2026-000086052 · never reused
Internal UUID01a0ae99-e82b-7dc4-a2a2-d045f1d71dca · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:01:57.178584Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000086052
StatusPUBLIC

Content hashes

Canonical text4156433ec82d7c256e2d33a1c953e652b25311d289ba1059758040b2bd5f479d
Markdown9047cc4dfa310aff7bf028c822a431f3411f83cf4453b2fcbe01b108aab643f2
PDF
Publication page5413c70181c07048ed5db934c110cc2c05ac317dd5f6ca58f76b593eb5a69092
Manifest7c23c069b9e8aa7b4faaf7fe9e62f3d89225477b285b3955e9213aca190af049

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
SignatureEyA7Y721u5jK6aXyNbZi8fDr6N9gBgAwedARxfsCrcLtaQwcSTfapxpgbY8tTRvJkrAAxAgRP2CxB9Z5WQfoAw==
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

2026-09-17T09:53:02.842144ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086052
observed 5413c70181c07048ed5db934c110cc2c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:53:02.823462ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086052/manifest.json
observed 7c23c069b9e8aa7b4faaf7fe9e62f3d8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:53:02.806456ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086052/publication.md
observed 9047cc4dfa310aff7bf028c822a431f3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:53:02.787944ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086052/publication.txt
observed 4156433ec82d7c256e2d33a1c953e652...
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.