OpenTechnical

OT-2026-000074546

Publication integrity record

Two bellows cup vacuum gripper, two outlet manifold, common isolation valve, pump fed, supply line pressure sensor, 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-2026-000074546) never changes.

Identity and time

Publication numberOT-2026-000074546 · never reused
Internal UUID01a0ae93-717b-73a4-8bca-21655c54e7ed · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:53.574555Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000074546
StatusPUBLIC

Content hashes

Canonical textacba0425e898264cb641d2094ae150352b4e018edb0c97cfd1f50e71507393e2
Markdown2591662a1f943affd5feddf547599bdb8ba153acf4380f969d33366399359ef4
PDF
Publication pagee7a871dfaf956fbe4e8cd2e47bb89af1c75dd42eec7a0f0aab875f2a234aaf82
Manifest6dad12d8a3eb629726886984beb93407652bc82057f76155a371add0bbf655c2

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
SignaturebGzKci77aUtw9BKLBFNmN1TPBmOYmFSNN2sVMwI8VsHdCNYo3Ko41ZGfqWNRoRb/4e9gleDFTyzaDdBD3dU2CA==
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

2026-09-17T10:19:31.823197ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074546
observed e7a871dfaf956fbe4e8cd2e47bb89af1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:31.806381ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074546/manifest.json
observed 6dad12d8a3eb629726886984beb93407...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:31.787482ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074546/publication.md
observed 2591662a1f943affd5feddf547599bdb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:31.771671ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074546/publication.txt
observed acba0425e898264cb641d2094ae15035...
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.