OpenTechnical

OT-2026-000074727

Publication integrity record

Three bellows cup vacuum gripper, three zone face, four outlet manifold, pump fed, manifold pressure sensor, pulsed 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-2026-000074727) never changes.

Identity and time

Publication numberOT-2026-000074727 · never reused
Internal UUID01a0ae93-ac2b-7c4f-9842-6bb95a966386 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:08.693295Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000074727
StatusPUBLIC

Content hashes

Canonical text71f7fa2d172b8c45bb4df27019bbed79da32130fc98544f14fdce1f0a0f2970d
Markdown095c30feecf803f3606a6e0bcf8ec2673cb3ef7f5025eeb2df785473ddea55c6
PDF
Publication page2a8f1cd795031142a9d42b128b676ee67f590756672690a8cb4fb0aa880a63a7
Manifestac72596f7a2911e57d85d8483352991047cda220b7cd3ccd18ec26a1bbf551f0

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
SignatureWygzm2lAVQDib4kCULdn0jBJ6+QX58ZwftWah5guc8/7CdarUvJJ4oq0kTqNk4989TZdp9Ieev6zTheZKpAcBw==
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

2026-09-17T10:18:19.603503ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074727
observed 2a8f1cd795031142a9d42b128b676ee6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:18:19.585166ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074727/manifest.json
observed ac72596f7a2911e57d85d84833529910...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:18:19.567135ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074727/publication.md
observed 095c30feecf803f3606a6e0bcf8ec267...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:18:19.549125ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074727/publication.txt
observed 71f7fa2d172b8c45bb4df27019bbed79...
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.