OpenTechnical

OT-2026-000027311

Publication integrity record

Three bellows cup vacuum gripper, three zone face, pump fed, pulsed 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-2026-000027311) never changes.

Identity and time

Publication numberOT-2026-000027311 · never reused
Internal UUID01a0ae72-6997-7627-ac44-cd2722e4a6f3 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:18:48.928538Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000027311
StatusPUBLIC

Content hashes

Canonical text4b759c8a9b790e7394fa566714becc91994623427d7aea66fe4b734bc630f5ac
Markdownfef09b302d7b2b18401fc6faa656b03d6271bc53c03e8992f67a858ee940339f
PDF
Publication pagea3a2433533ce1f7e73c904948084547628450398023193fdc223dd84d23b4167
Manifest8fa2e7cb27cc4ea29d1678bf9b9aee2a74ee6b02b0fd50966398d837c342ea57

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
SignatureOLXfA28sRbgZ6B0heqYDX+18LJk6IweKsKVUJ4rORX3KvyTof4NhAdckp2Ttg1/jP1zbeLsgrPHtRc28Q/3FBQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:42:42.316031ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027311
observed a3a2433533ce1f7e73c9049480845476...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:42.299671ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027311/manifest.json
observed 8fa2e7cb27cc4ea29d1678bf9b9aee2a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:42.281800ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027311/publication.md
observed fef09b302d7b2b18401fc6faa656b03d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:42.264364ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027311/publication.txt
observed 4b759c8a9b790e7394fa566714becc91...
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.