OpenTechnical

OT-2026-000078750

Publication integrity record

Single bellows cup vacuum gripper, single stage ejector, vented after set-down

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-2026-000078750) never changes.

Identity and time

Publication numberOT-2026-000078750 · never reused
Internal UUID01a0ae95-ccbc-7540-9298-f057fc1c9d5c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:57:28.017032Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000078750
StatusPUBLIC

Content hashes

Canonical text99eb34c887cb28ee0243a2455edfd2052d83b41e1eab28c52237b19cb629ba1f
Markdown381b8e6deae1dbb9ef5e3130a132b6f8972c7c8ed0c7857efe2e97a34eb7d36e
PDF
Publication page4548a68887874217885514655bc1ab4398a2b78948e7df226f86798cc6b25ce1
Manifest01fc80b27ef89179babd113d8156356dc01164d9594c8a2b05a047626542998b

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
Signature49Pc7qnZ3jWSs7FEMJquqIr55iNgktQwiTg1ZiicD3Y0aU1ug89B8HZ1mjNqUfEbgehLeUlXDySQMStd3nHSAA==
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

2026-09-17T10:05:32.126719ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078750
observed 4548a68887874217885514655bc1ab43...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:05:32.109902ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078750/manifest.json
observed 01fc80b27ef89179babd113d8156356d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:05:32.090541ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078750/publication.md
observed 381b8e6deae1dbb9ef5e3130a132b6f8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:05:32.068786ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078750/publication.txt
observed 99eb34c887cb28ee0243a2455edfd205...
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.