OpenTechnical

OT-2026-000027442

Publication integrity record

Foam pad vacuum gripper, common isolation valve, pump fed, supply line pressure sensor, 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-2026-000027442) never changes.

Identity and time

Publication numberOT-2026-000027442 · never reused
Internal UUID01a0ae72-6998-7036-9557-65301c61a239 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:18:48.928538Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000027442
StatusPUBLIC

Content hashes

Canonical text28c3b8b5879d1aefc2e918cbde957c47928ef6b63436ec583ad115a436a6bb91
Markdown76187290f30c18b468b7cf22b00cdd7bcb70d882f3c057efb17f1d86f333ef34
PDF
Publication page768fba14ec8772e154cf4c8f7dcefedade6d5081c99e529601b30d437f314cd4
Manifest7fb38c10589c0ae76720914df1e47dd06f8722adf3be8f5315227a034eaed19b

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
SignaturengZ3TtzlrThGjAI04sAM6WYkLTMXDf4Hiy6XSwGdYfLqlmevClMRrfUHJD2pQycOFavgJuVq3ZNwUJ/6BH2tCA==
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

2026-09-17T11:42:53.700141ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027442
observed 768fba14ec8772e154cf4c8f7dcefeda...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:53.681945ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027442/manifest.json
observed 7fb38c10589c0ae76720914df1e47dd0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:53.664803ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027442/publication.md
observed 76187290f30c18b468b7cf22b00cdd7b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:53.646391ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027442/publication.txt
observed 28c3b8b5879d1aefc2e918cbde957c47...
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.