OpenTechnical

OT-2026-000073422

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, two stage ejector, manifold 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-2026-000073422) never changes.

Identity and time

Publication numberOT-2026-000073422 · never reused
Internal UUID01a0ae92-efb8-7134-87d7-5cbe7e3b7b68 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:20.363042Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000073422
StatusPUBLIC

Content hashes

Canonical textd488bbd537e9eb45ea957ab10a29e89c4a97e557461f092c1ba1b1ca42a83335
Markdown09c3a2b10423020471665a3b4be53335cdd3a53210b5331bfe3e285fdca0acd0
PDF
Publication page7dbdfc36e70636f15a1fb8dea40397049424ab03006bdb6e9c3868164ee5d1fc
Manifest9548984c609dbb2e0ef0482d60590fb7e7a35867d87a6a5c86770b99cbab0883

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
SignatureaoyYbbpRj+2gzcoF3hgpreouCtIqsH4xDLvNGOI03bZ0m8Wbw2dfzqGDEvJmz8/G6S5x7TP+AwtvshRfj2l1BA==
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

2026-09-17T10:21:34.357641ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073422
observed 7dbdfc36e70636f15a1fb8dea4039704...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:34.339113ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073422/manifest.json
observed 9548984c609dbb2e0ef0482d60590fb7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:34.319355ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073422/publication.md
observed 09c3a2b10423020471665a3b4be53335...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:34.299865ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073422/publication.txt
observed d488bbd537e9eb45ea957ab10a29e89c...
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.