OpenTechnical

OT-2026-000056429

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, pump fed, supply line pressure sensor, 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-2026-000056429) never changes.

Identity and time

Publication numberOT-2026-000056429 · never reused
Internal UUID01a0ae87-4bd2-73a3-b11e-c25d59872e6d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:41:37.517586Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000056429
StatusPUBLIC

Content hashes

Canonical texte26a7b97e3cbde9375a678880894fa953004a0976edff49f112b9ba0f01daad1
Markdownc2b3b2d6ee25a2a872748ebd1016842bf6ad753992951035eb8af2a96c5eed8b
PDF
Publication page590fcf71593eb0636e371713b21bc0b111df5e16e077dddca898787c51bdc683
Manifest68a5400964564fd144be6a1ccb0e9543e91528cf0b4fa0a7d57529acb959eca3

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
Signature1WcfDbxgz51ybs0+UnITlAc9HmgAD2bQ9HrX7/PpzF1WZSGTToBLnFQwcn+l24fK+9BUHrdjqwA/3nZ/8IM6BQ==
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

2026-09-17T10:50:57.679183ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056429
observed 590fcf71593eb0636e371713b21bc0b1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:50:57.663060ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056429/manifest.json
observed 68a5400964564fd144be6a1ccb0e9543...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:50:57.644985ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056429/publication.md
observed c2b3b2d6ee25a2a872748ebd1016842b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:50:57.626547ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056429/publication.txt
observed e26a7b97e3cbde9375a678880894fa95...
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.