OpenTechnical

OT-2026-000080727

Publication integrity record

Two bellows cup vacuum gripper, two zone face, common isolation valve, pump 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-2026-000080727) never changes.

Identity and time

Publication numberOT-2026-000080727 · never reused
Internal UUID01a0ae96-b973-7a47-a7b3-6d28c312dd68 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:28.739380Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000080727
StatusPUBLIC

Content hashes

Canonical text27578df35a485cdc186f0d3a1025eea23beef1f42bdd83f1e1021bbcc642b346
Markdowna178a20df0fdbac9ae5b36e5f1cbddfc0c6e539d372dab4c51118408f654a14d
PDF
Publication page573fb75b86fc7d07cde0b36150804e6782392b87d49fa4039ded20aa92d8a5f5
Manifest09225c42165444ec7874805d1f3bb07cf513a26973f6a8b2781f67aa9d0a2912

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
SignatureEHkyFC/C1915SosvPA0jWlt4G9gxQw3QK7FaCf5p+lc9sAbH86VuqtWF1OSc+MM+52YThpZew0tetI504DD9Cw==
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

2026-09-17T10:01:45.987748ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080727
observed 573fb75b86fc7d07cde0b36150804e67...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:45.970066ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080727/manifest.json
observed 09225c42165444ec7874805d1f3bb07c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:45.952149ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080727/publication.md
observed a178a20df0fdbac9ae5b36e5f1cbddfc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:45.934357ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080727/publication.txt
observed 27578df35a485cdc186f0d3a1025eea2...
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.