OpenTechnical

OT-2026-000073015

Publication integrity record

Four bellows cup vacuum gripper, four zone face, four outlet manifold, plant vacuum fed, supply line pressure sensor, pulsed 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-2026-000073015) never changes.

Identity and time

Publication numberOT-2026-000073015 · never reused
Internal UUID01a0ae92-c815-702e-8313-9fc21e1cc39a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:10.336919Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000073015
StatusPUBLIC

Content hashes

Canonical text156da1f3a72f26482d24cdc82e1356a34966a5c131331403c96ead59b473ab3e
Markdown18f89bfa20a8712179f5d1c5e997ea0b1c366acfc9c2e21192441f9e6a519573
PDF
Publication page7d7c832bf8e684cab571824f5ecdf2f6a39c09f4bc549253e9be8c9f711a92b9
Manifestc0afb906951f278c0f08bc978fe40682a380e95925803c6b85d94345b5236b20

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
SignatureDvGhWIMWHK+dimTNJGYxVKwKiXD+cDc2T+VwNsdj39HuAkMKKVm6SuKjpem4nd3YOV15mzDHGaJ7pjmA+MMwCg==
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

2026-09-17T10:21:57.136430ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073015
observed 7d7c832bf8e684cab571824f5ecdf2f6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:57.119364ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073015/manifest.json
observed c0afb906951f278c0f08bc978fe40682...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:57.100649ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073015/publication.md
observed 18f89bfa20a8712179f5d1c5e997ea0b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:57.082650ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073015/publication.txt
observed 156da1f3a72f26482d24cdc82e1356a3...
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.