OpenTechnical

OT-2026-000071728

Publication integrity record

Two bellows cup vacuum gripper, two outlet manifold, pump fed, vented 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-2026-000071728) never changes.

Identity and time

Publication numberOT-2026-000071728 · never reused
Internal UUID01a0ae92-1e91-7fa1-a2c4-d069d0a61ec7 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:26.841552Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000071728
StatusPUBLIC

Content hashes

Canonical text722d9856185332c1c2c79400ceb40c4d66c68e316c3ee464440f667062bb6d28
Markdown539e904cafb8631fe9fb30066615c71e483efae99f4d31729ec729ddb01cda38
PDF
Publication pagec11759498f512e2722f6b87b711fb32b39e735027636804595376eabbe6e08ab
Manifest3fb18517cd7c3d802457fc78756b055b956b1496a6658e016f10f2e670672b4f

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
SignatureaPXLyjIT/HKypCTa0nmP2NKBj/7LXyvR6VwGntcrdY/FeqzZiCzHPpMdTV0DThS74f66sDkPYXDveGQ2n2ltDQ==
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

2026-09-17T10:23:52.980970ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071728
observed c11759498f512e2722f6b87b711fb32b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:52.960959ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071728/manifest.json
observed 3fb18517cd7c3d802457fc78756b055b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:52.941360ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071728/publication.md
observed 539e904cafb8631fe9fb30066615c71e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:52.922760ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071728/publication.txt
observed 722d9856185332c1c2c79400ceb40c4d...
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.