OpenTechnical

OT-2026-000084576

Publication integrity record

Four bellows cup vacuum gripper, four zone face, common isolation valve, plant vacuum fed, 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-2026-000084576) never changes.

Identity and time

Publication numberOT-2026-000084576 · never reused
Internal UUID01a0ae98-e25b-761d-820b-7506d213a959 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:00:50.163111Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000084576
StatusPUBLIC

Content hashes

Canonical text173d45a0bc44029ee3a7f1faf9c08b98a0fe62e7863b776414390d534fe4b6e4
Markdown73a264d06925ac82e23e4b5c7e3bc5b93787d7f0f3458f2694e1c2af6d3db489
PDF
Publication page20b3e2e620e941ca76007010db5a7edb37bfcd2e039610be59bd2be83d87babc
Manifestde8c3741e844c1507ec586a86394caa54f9118e8a201dd92922d7e364f0cd017

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
SignatureN6U1dIA8aackP43zUWkOgwuOdEc5fycqx6SFMLsTcl56FPft6KsNCxMCI0we10CWKcNSdnx9ire8kNk4xtYtDg==
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

2026-09-17T09:55:28.454488ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000084576
observed 20b3e2e620e941ca76007010db5a7edb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:55:28.436396ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000084576/manifest.json
observed de8c3741e844c1507ec586a86394caa5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:55:28.418089ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000084576/publication.md
observed 73a264d06925ac82e23e4b5c7e3bc5b9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:55:28.401821ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000084576/publication.txt
observed 173d45a0bc44029ee3a7f1faf9c08b98...
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.