OpenTechnical

OT-2026-000051946

Publication integrity record

Foam pad vacuum gripper, common isolation valve, pump fed, vented 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-2026-000051946) never changes.

Identity and time

Publication numberOT-2026-000051946 · never reused
Internal UUID01a0ae83-e78d-765b-b562-7641aa34ccc6 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:37:55.233643Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000051946
StatusPUBLIC

Content hashes

Canonical text6ee3b997cddb42f3830d5a173219dcca914bf4232ec6c49d49d59e29e82c338a
Markdown7c986b42475c300be4d34b9fc2a14eec3141acd3bd956f551ece1fb490b8b0b3
PDF
Publication page3f226edf7ad281056853e19da1c190ac2b2ce87f3bbee28fbacd6d76595b5c24
Manifest7217b4cfa17bd3335ccc1141289032420f3e41ccb60335a2a9b0bcf2a06c1659

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
Signaturehq6rCmgpqXl8bmsJhLMlj9ocpl24ftDsez2oA0h5El/8m/Zg3EYDQlzgFTM4qPZDd8R5nU+ZYRDXPWt7ikp2BA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...
timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T10:57:26.306195ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000051946
observed 3f226edf7ad281056853e19da1c190ac...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:57:26.288702ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000051946/manifest.json
observed 7217b4cfa17bd3335ccc114128903242...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:57:26.272251ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000051946/publication.md
observed 7c986b42475c300be4d34b9fc2a14eec...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:57:26.254036ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000051946/publication.txt
observed 6ee3b997cddb42f3830d5a173219dcca...
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.