OpenTechnical

OT-2026-000060481

Publication integrity record

Single cup vacuum gripper, common isolation valve, plant vacuum fed, vented 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-2026-000060481) never changes.

Identity and time

Publication numberOT-2026-000060481 · never reused
Internal UUID01a0ae8a-b7cc-73ab-99de-ceb4e2d98e32 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:45:21.818756Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000060481
StatusPUBLIC

Content hashes

Canonical text370cdbadfaa24ba12e8d7f5653f0c080a539fe49225eeb276518f668435f9460
Markdown1a7843515b0041b1cdd0b83e03b0f6d28ebc91e1180df274f3cac0ba85c5d0f4
PDF
Publication pagedd818b21ebc20beacbfffdd5e375bc489e3d71a8d3f644747c907e49c0c74c4b
Manifest643f8ffcd2f7f75aa6de41900013b82416f2dfa4fe31ef323a6a74e1fb5aae73

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
SignatureMxRy5oY6qDt+G0zJc4BEmHffbp6BhplpUYK+EFZFWCWgdshzD0TqV988qCZ05puzEfBOrch5jZFZjqJbnfSTAw==
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...

Independent retrieval

2026-09-17T10:42:58.391966ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000060481
observed dd818b21ebc20beacbfffdd5e375bc48...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:42:58.375355ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000060481/manifest.json
observed 643f8ffcd2f7f75aa6de41900013b824...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:42:58.357695ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000060481/publication.md
observed 1a7843515b0041b1cdd0b83e03b0f6d2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:42:58.339406ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000060481/publication.txt
observed 370cdbadfaa24ba12e8d7f5653f0c080...
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.