OpenTechnical

OT-2026-000080255

Publication integrity record

Three bellows cup vacuum gripper, three zone face, per zone isolation, plant vacuum 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-2026-000080255) never changes.

Identity and time

Publication numberOT-2026-000080255 · never reused
Internal UUID01a0ae96-7e77-7654-a393-4d1a876677d5 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:13.512436Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000080255
StatusPUBLIC

Content hashes

Canonical textf180a33515abe6b762f5569b599247720830aa3d920df569334452867bd4875e
Markdown66f8afcd7b8c6bfb875e04907bf21dcf9b9c572a2c40ec90bec4fbd10a98fbfb
PDF
Publication pagea32acbcf4ec2b4f2cf17af56e49f9ba3e60db404407b1dde648de416548ff5f8
Manifestbfb5f637a5ba3c46052274688903aee8743b4d75c2d180d0248d78cab7f655c4

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
Signaturet8WBfb6dmGp7tpQIvVtdjQCGm/20YZrIWHIwFMmnTqF5ewFV+9CNKkHBuNqbrq6QcIq3L+8jeidR8+w23IrEAg==
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

2026-09-17T10:02:43.011915ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080255
observed a32acbcf4ec2b4f2cf17af56e49f9ba3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:42.993325ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080255/manifest.json
observed bfb5f637a5ba3c46052274688903aee8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:42.976429ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080255/publication.md
observed 66f8afcd7b8c6bfb875e04907bf21dcf...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:42.960111ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080255/publication.txt
observed f180a33515abe6b762f5569b59924772...
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.