OpenTechnical

OT-2026-000027840

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, common isolation valve, plant vacuum fed, sustained 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-2026-000027840) never changes.

Identity and time

Publication numberOT-2026-000027840 · never reused
Internal UUID01a0ae72-a4a5-74cf-8d2b-41ad45b565ac · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:04.113553Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000027840
StatusPUBLIC

Content hashes

Canonical textd4d13aacf7b2505a669073bc03510e01a441e0514635c222d614af151d154c5f
Markdowna485a5297f560503d0ac2a98d15394fc320ba4d4d5373ef3a92709d787eec9a4
PDF
Publication pageb5203b9dc7be4f874cde34cb2d782c076553ae43e6c13b5105fc83b40e74faae
Manifest62a3dfa67e090efeb97366076eba0fe0b8e0e5ded675e11634f31097dceb187c

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
SignatureA1Wmlwl44kYaChz2OV/xKb16bnVhGx99tMtY/tfC+BeJnWiEFMCNuVeqpBbpupP7gF9FlA15mxuktrHJO9QnBg==
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

2026-09-17T11:41:53.715969ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027840
observed b5203b9dc7be4f874cde34cb2d782c07...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:41:53.699721ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027840/manifest.json
observed 62a3dfa67e090efeb97366076eba0fe0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:41:53.682946ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027840/publication.md
observed a485a5297f560503d0ac2a98d15394fc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:41:53.665862ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027840/publication.txt
observed d4d13aacf7b2505a669073bc03510e01...
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.