OpenTechnical

OT-2026-000070500

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, 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-2026-000070500) never changes.

Identity and time

Publication numberOT-2026-000070500 · never reused
Internal UUID01a0ae91-5460-703a-8cb1-7ec1a99a48c9 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:52:35.055348Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000070500
StatusPUBLIC

Content hashes

Canonical text471896e72f3eeef6a9dcd5e37142c2185ab481dc6f2a292a3a17a34cedb80f82
Markdowna933a57f7bf7e17d860ab69e1ad42b714906ef994350212bebaff8c2a0b9f17d
PDF
Publication pagefbd19e3e56fd3cda8173760fd6827c04768cd9cc4486b770df2c49a396761889
Manifest82449592c8f3e007c6934070254f91642ef4df339b94b2f05bbec9f484d6b6e4

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
SignaturevS+Bd7PIEpEMDVP/M06FV6LFatpewHsqAmw9lTLW4ErMUwfMlCZJwd7MgWMhsjSCMp50GNeiy/zewSh6T/9pCw==
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

2026-09-17T10:26:20.188151ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000070500
observed fbd19e3e56fd3cda8173760fd6827c04...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:26:20.169282ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000070500/manifest.json
observed 82449592c8f3e007c6934070254f9164...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:26:20.150657ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000070500/publication.md
observed a933a57f7bf7e17d860ab69e1ad42b71...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:26:20.134496ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000070500/publication.txt
observed 471896e72f3eeef6a9dcd5e37142c218...
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.