OpenTechnical

OT-2026-000087498

Publication integrity record

Two bellows cup vacuum gripper, two zone face, 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-2026-000087498) never changes.

Identity and time

Publication numberOT-2026-000087498 · never reused
Internal UUID01a0ae9a-cd51-7f82-819c-f49e57d1abd2 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:02:55.852518Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000087498
StatusPUBLIC

Content hashes

Canonical textb5e440d806d239fc3bdecfca34437cb8298d2b83475a720fa09f0bbe8d838384
Markdown20ff59b084842c7fe36328c0288fcdc37eace74c1bc263b5ebabf48c2727074c
PDF
Publication page0e9c9e51cc7280fd5a0f56a83dd0c543f2253b45f48a466d9035d2d5d03e285c
Manifest27ff3c7157762db95402c74c1039256d43fa2e22d399fe54d96e7d7152cffc97

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
SignatureJh0JSOPTwCLEaBmEStatqaSf7fIe9NPIiqYCdozDPfjvLj8oVoOVtwE12C0SEc+r1TPo6ZmfUIAquv7Gw9mvDg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T09:50:49.806483ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087498
observed 0e9c9e51cc7280fd5a0f56a83dd0c543...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:49.788747ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087498/manifest.json
observed 27ff3c7157762db95402c74c1039256d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:49.771789ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087498/publication.md
observed 20ff59b084842c7fe36328c0288fcdc3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:49.756421ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087498/publication.txt
observed b5e440d806d239fc3bdecfca34437cb8...
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.