OpenTechnical

OT-2026-000022339

Publication integrity record

Three bellows cup vacuum gripper, three zone face, common isolation valve, pump fed, pulsed 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-2026-000022339) never changes.

Identity and time

Publication numberOT-2026-000022339 · never reused
Internal UUID01a0ae6f-f4fd-7bc3-8f46-8ba65e7640ca · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:16:07.953226Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000022339
StatusPUBLIC

Content hashes

Canonical text83451db19039b3305d9f48b86fdb84f7f1c4e23bc0c84b63abd497ab1a016fdb
Markdownf96983a3089e24473ce495f0b58ab377015468c1fa7c6ba7b48357919481541c
PDF
Publication pageab84c62d9c481c8538fe748a24f954518c7fada28793d5bbed0ee56c7d3dfef0
Manifest4ed447c924ba2ef1c96801dc64102cf16d75d4ecd306ea6f05aaad6d4fdc48bc

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
SignaturehDrhZzUdkxBLtuwuEaAWLX9xepHSxnxABgMZoTi33sGtM+iIrrzw6RsB/ULdkO5+oWG8CHym97+9TO55smhyCQ==
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

2026-09-17T11:53:42.120858ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022339
observed ab84c62d9c481c8538fe748a24f95451...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:53:42.101451ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022339/manifest.json
observed 4ed447c924ba2ef1c96801dc64102cf1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:53:42.083270ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022339/publication.md
observed f96983a3089e24473ce495f0b58ab377...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:53:42.066747ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022339/publication.txt
observed 83451db19039b3305d9f48b86fdb84f7...
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.