OpenTechnical

OT-2026-000077200

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, three stage ejector, vented after 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-2026-000077200) never changes.

Identity and time

Publication numberOT-2026-000077200 · never reused
Internal UUID01a0ae94-f508-7408-9f2f-ff4c466e0863 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:32.796581Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000077200
StatusPUBLIC

Content hashes

Canonical textfdc00b0f636e73a9ec0e0eeaa0908e0d3e1f5f13988c34bb36be581ebbbfe9a5
Markdown53f6f37ff35fdee67d29e608b994ffe68bd68a99194c7f577dd096411a7c1050
PDF
Publication page24b5956a8b30213c24f71bc97f08a4c64be0d31a7083d9987e65630bc30244d8
Manifest11f85fe7fe31d4aec4dded890526b859a9e52eec60690e571e2c52e1e479f2fd

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
Signaturez4Xa35OUxubEJHZJoX/5aSb3Y4BI5Csnn+K4rVVlfxNcSBVl1jEGMhI79I/KkWzcBcou6B0qldmUG7uGIyCwAg==
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

2026-09-17T10:08:47.433205ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077200
observed 24b5956a8b30213c24f71bc97f08a4c6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:40.533679ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077200/manifest.json
observed 11f85fe7fe31d4aec4dded890526b859...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:40.515476ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077200/publication.md
observed 53f6f37ff35fdee67d29e608b994ffe6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:40.496178ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077200/publication.txt
observed fdc00b0f636e73a9ec0e0eeaa0908e0d...
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.