OpenTechnical

OT-2026-000041038

Publication integrity record

Foam pad vacuum gripper, common isolation valve, pump fed, sustained blow-off 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-2026-000041038) never changes.

Identity and time

Publication numberOT-2026-000041038 · never reused
Internal UUID01a0ae79-b10e-79d5-be47-2ec84d803839 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:26:45.980839Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000041038
StatusPUBLIC

Content hashes

Canonical text9af55cc4b904672a41941eb8ac5d2d9b3180dcb93401bd59987dc8f70f3c7e02
Markdown8c2565c1f628511892f0a38972dc4a0220776c7fdbc3fbbda80009973c4b5120
PDF
Publication pageb1d282e7460efbd91d290ce135cff9898fff198a9f9ec7d04f196c9206456d64
Manifest3a67770105b01c1f2df25a16ed3c991392e9bd7d1aea69e4ab76acf87b2913b0

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
Signature6fZsU75JK7Na9X/AvQEcAcyrMAUq3wdajgOL9Xw9TWEhweSREmsLImva+UZQpMgePFO9tDudgrtm0PhwCBXmBw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

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

Independent retrieval

2026-09-17T11:16:56.888039ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041038
observed b1d282e7460efbd91d290ce135cff989...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:56.873120ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041038/manifest.json
observed 3a67770105b01c1f2df25a16ed3c9913...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:56.857223ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041038/publication.md
observed 8c2565c1f628511892f0a38972dc4a02...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:56.840987ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041038/publication.txt
observed 9af55cc4b904672a41941eb8ac5d2d9b...
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.