OpenTechnical

OT-2026-000081671

Publication integrity record

Three cup vacuum gripper, three zone face, three outlet manifold, two stage ejector, 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-2026-000081671) never changes.

Identity and time

Publication numberOT-2026-000081671 · never reused
Internal UUID01a0ae97-0f73-7f5a-8f89-0e163e57792c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:50.648824Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081671
StatusPUBLIC

Content hashes

Canonical text27c74489ae944ffbf175c6dd9643d37eca4f90dabbe9f1c35bdb6a8989021e26
Markdown55acaa72ea1ea67e0bec999ed444af0a9a74150c4859f238951eba9d9d89d941
PDF
Publication page29356b389c41751b35e7120923133ed97e60a27b7f965ab045f42f610bc2017f
Manifestcd588fd89b132694aabc499a5f8d23e90119aaebda4fb249dc5fa84a3fd779d8

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
SignatureGlpQx5yhaCwxx5yOEPS2/6BXYLJoKntPi1uB642uytxIP7tM/c0e5mrRjYbJ5HBIcCxZvns7h5ILx5Swn55ODw==
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

2026-09-17T09:59:43.881928ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081671
observed 29356b389c41751b35e7120923133ed9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:43.863888ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081671/manifest.json
observed cd588fd89b132694aabc499a5f8d23e9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:43.847243ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081671/publication.md
observed 55acaa72ea1ea67e0bec999ed444af0a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:43.831734ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081671/publication.txt
observed 27c74489ae944ffbf175c6dd9643d37e...
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.