OpenTechnical

OT-2026-000006263

Publication integrity record

Vacuum cup gripper, common isolation valve, pump fed, pressure verified

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-2026-000006263) never changes.

Identity and time

Publication numberOT-2026-000006263 · never reused
Internal UUID01a0a954-d439-7070-beaf-4f1617e8228c · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:28:23.996035Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006263
StatusPUBLIC

Content hashes

Canonical text555d3855ca2f4773462292e3315fb6e09a5364efeee086bdc670473108ee0035
Markdown2e8f4eff6d5c2753b2a2ca0e2f1e2407e3ea1f576b6b3e50ecbe9c7eb01cf176
PDF
Publication page84eab7a91921d5d8ae0c3a62ba38610fc43f5985f3f334128d857794215e1453
Manifest31750cd8f4f33197b038a48c311d392458f6fc21939c72bbef2b9d21e826f0b4

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
Signature+ky0m2ikAWjeziHi/Lfy47w6rVwCYfzPFvfrKPGNk3UnRGep+3zFSRlYyNMt9iYY8gmUAoqNWEaqHrZTZ30YBg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:47:03Z
batch OT-TS-2026-W38-013 · RFC 3161 token · inclusion proof
root e368e9c5ab06dc5cb1b0682dd54c11f5...

Independent retrieval

2026-09-16T08:30:08.396424ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006263
observed 84eab7a91921d5d8ae0c3a62ba38610f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:30:08.380680ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006263/manifest.json
observed 31750cd8f4f33197b038a48c311d3924...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:30:08.247340ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006263/publication.md
observed 2e8f4eff6d5c2753b2a2ca0e2f1e2407...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:30:08.232075ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006263/publication.txt
observed 555d3855ca2f4773462292e3315fb6e0...
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.