OpenTechnical

OT-2026-000055215

Publication integrity record

Two bellows cup vacuum gripper, two zone face, common isolation valve, plant vacuum fed, supply line pressure sensor, 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-2026-000055215) never changes.

Identity and time

Publication numberOT-2026-000055215 · never reused
Internal UUID01a0ae86-a0ff-72bf-97c4-03afe539675e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:40:53.783868Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000055215
StatusPUBLIC

Content hashes

Canonical text95583b6c98acbeb8138924686fbb2a6b2732223d94f1b0ec97f3f5818416dd9a
Markdown858e7bd0ffd1048c4607f076618636462267c032177f47494c8563204462d6d7
PDF
Publication pagea7fa066fcf6d38e802f5ba7bde0948b7f7d5d1867b0fa76947cc0cde5bd0f981
Manifest1ea23ee6bb2d67361c99e95887c6bf5596c6498a2e5865f4ec552494eded9cab

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
SignatureGPpltubHi1cWLzSqCwUOPfv8wZy6EPfmGQvrYRg3y54vJXTOnVztPtydcin2kdwEj8+du4R0HKZUZAXjknLiBA==
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

2026-09-17T10:51:47.488881ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055215
observed a7fa066fcf6d38e802f5ba7bde0948b7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:47.471403ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055215/manifest.json
observed 1ea23ee6bb2d67361c99e95887c6bf55...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:47.455217ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055215/publication.md
observed 858e7bd0ffd1048c4607f07661863646...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:47.437490ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055215/publication.txt
observed 95583b6c98acbeb8138924686fbb2a6b...
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.