OpenTechnical

OT-2026-000072748

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, plant vacuum fed, supply line pressure sensor, vented before set-down

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-2026-000072748) never changes.

Identity and time

Publication numberOT-2026-000072748 · never reused
Internal UUID01a0ae92-89da-7098-8d88-bc3d47ce0fb8 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:54.283203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000072748
StatusPUBLIC

Content hashes

Canonical text87f16e5cab9980076004e2a029ee97004d2f06b2b0146b300a940b4729b22fae
Markdown22984c91de39d9ae39a1140f4e979f1a76bdc70a157c7a765532c42d47cf39a7
PDF
Publication page12b78d35214875cbcdfd19320f4fc42c9d387151da4d2534ffd4e12f03beeea8
Manifest8224720157703185ca338b53c710562573573e1b689ccd0684118b1376a218a7

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
SignatureQ8M9UZtqnULXJg90/ANsE+RTOWbnH91BMBUE9vPzzCHEmYlKNXUOCWgLy2cd87gIHRyxwMBEDhtWct41NrGXCw==
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

2026-09-17T10:22:39.199017ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072748
observed 12b78d35214875cbcdfd19320f4fc42c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:39.183369ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072748/manifest.json
observed 8224720157703185ca338b53c7105625...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:39.167355ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072748/publication.md
observed 22984c91de39d9ae39a1140f4e979f1a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:39.151931ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072748/publication.txt
observed 87f16e5cab9980076004e2a029ee9700...
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.