OpenTechnical

OT-2026-000077444

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, 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-2026-000077444) never changes.

Identity and time

Publication numberOT-2026-000077444 · never reused
Internal UUID01a0ae94-f509-78f6-814f-54dd9e702246 · 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-2026-000077444
StatusPUBLIC

Content hashes

Canonical text105c061b937576f1b2b38fe76d8d1f4ec4088062447ad34025d6be504801a4bd
Markdownf565cdccac87336e82f80951ea7ad22f5157bbadf764a6252e3ada94445cd506
PDF
Publication page52c1b1119ac896fafbcce3849cce3a0f606af7a8157258baa2b0569afd2abb01
Manifest8d5ca84b039d8792594b07697488cf6290d74d6220847efcc90cd62eb796df00

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
Signature7hDNZK/tUIPXzrjOmwpXSw0Aroh+IpY0DdBbnCfAWx6M93tftTHVOGITsqgOV4nfu60xcTViZybdg4sr15iTCg==
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

2026-09-17T10:09:07.744468ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077444
observed 52c1b1119ac896fafbcce3849cce3a0f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:07.724324ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077444/manifest.json
observed 8d5ca84b039d8792594b07697488cf62...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:07.705341ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077444/publication.md
observed f565cdccac87336e82f80951ea7ad22f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:07.686131ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077444/publication.txt
observed 105c061b937576f1b2b38fe76d8d1f4e...
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.