OpenTechnical

OT-2026-000075762

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, plant vacuum fed, supply line pressure sensor, vented 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-2026-000075762) never changes.

Identity and time

Publication numberOT-2026-000075762 · never reused
Internal UUID01a0ae94-29fe-7984-9395-61316e26cd9c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:40.814795Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000075762
StatusPUBLIC

Content hashes

Canonical text80709d32b1993041a1490f948865a628793f4b6d1facfee75a6fec2fe64e9394
Markdownc13bda19f81fddf998ae45bcbcc6f79d72f24a67f607619d570e3f3e7541a8ab
PDF
Publication pageba9fa901f0f8a2cfd019fa6ea11f776630694d47d130781e9b079eac814a9476
Manifest7b07794b049af157606369ae406eb51628e3b0305384bad2e67d95cec7250fbc

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
SignatureT+e8gN1+a3t/njeObh/qJ+iKhXOcH/4FhfIzwOwcDc4H/CgGjETBFK2G4Q+K2LSei6XpKEpEJNQvHuajZ3peAw==
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

2026-09-17T10:14:05.003960ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075762
observed ba9fa901f0f8a2cfd019fa6ea11f7766...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:14:04.980241ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075762/manifest.json
observed 7b07794b049af157606369ae406eb516...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:14:04.958804ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075762/publication.md
observed c13bda19f81fddf998ae45bcbcc6f79d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:14:04.448785ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075762/publication.txt
observed 80709d32b1993041a1490f948865a628...
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.