OpenTechnical

OT-2026-000062649

Publication integrity record

Four cup vacuum gripper, four outlet manifold, pump fed, supply line pressure sensor, vented after 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-2026-000062649) never changes.

Identity and time

Publication numberOT-2026-000062649 · never reused
Internal UUID01a0ae8c-0ac2-7feb-bcb3-34d4a1c89307 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:46:48.542263Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000062649
StatusPUBLIC

Content hashes

Canonical text9e4692ff853a66c0cca98920fbc21e7ee4c77adc5b5505dcc6ee6fa9797a8f3d
Markdown75ea2b5723f4dd9513eb849345b839ad886e247337814c8ac36214136317ddce
PDF
Publication page9ae6443bb6a094fd63cc71d29fd9bac13294aaab1a2b6df505b3ac573b429f7a
Manifest34d26242945db407868bd0f0625078e2dda76efdfd5d0851f910f9684031d548

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
SignatureqSW+vSha8nZaGZJf2FV1XzLqtPh+b3dzNneOKi/f0Ywugm50mq3kejSJ7Iv9NYZ+AawAL/nJdmnDP080UplHDA==
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

2026-09-17T10:40:11.280295ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000062649
observed 9ae6443bb6a094fd63cc71d29fd9bac1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:40:11.257027ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000062649/manifest.json
observed 34d26242945db407868bd0f0625078e2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:40:11.236488ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000062649/publication.md
observed 75ea2b5723f4dd9513eb849345b839ad...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:40:11.215004ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000062649/publication.txt
observed 9e4692ff853a66c0cca98920fbc21e7e...
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.