OpenTechnical

OT-2026-000057881

Publication integrity record

Three cup vacuum gripper, three 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-2026-000057881) never changes.

Identity and time

Publication numberOT-2026-000057881 · never reused
Internal UUID01a0ae88-6ed8-732b-8ab9-9ffeeb8c5218 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:42:52.020108Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000057881
StatusPUBLIC

Content hashes

Canonical textef701f6e03eb32c67888986cd209fb7fcc5f4fdace9b6d400f52e437466d1107
Markdowncd1f7d9ca9143f97764cc3abbfc5eb3a356748632a4916ce5cfdc3e8993be752
PDF
Publication pagedf89fb597e1e6fb790ca9c2f3d7f3cebf4732b008914f4c04df43ecb1b52ed61
Manifestac39a34249c68426068cd20965c1b2a79ca016c5b2575dca7e7b95019d28892c

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
Signatureej4yftc6JIhwCAhQJexs2PObxPgrnGzqnSXQTvru3K4EN9JQwrnWIHpIBzp6uMY6m/uVZRyk1bRp0B8yuMRMCw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...

Independent retrieval

2026-09-17T10:47:28.179963ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057881
observed df89fb597e1e6fb790ca9c2f3d7f3ceb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:28.163018ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057881/manifest.json
observed ac39a34249c68426068cd20965c1b2a7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:28.143737ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057881/publication.md
observed cd1f7d9ca9143f97764cc3abbfc5eb3a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:28.125240ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057881/publication.txt
observed ef701f6e03eb32c67888986cd209fb7f...
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.