OpenTechnical

OT-2026-000029647

Publication integrity record

Four cup vacuum gripper, four zone face, common isolation valve, single stage ejector, 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-2026-000029647) never changes.

Identity and time

Publication numberOT-2026-000029647 · never reused
Internal UUID01a0ae73-5e23-77bd-9754-ca596ff77e14 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:51.545382Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000029647
StatusPUBLIC

Content hashes

Canonical text630a4cefe029d59975e1bdbc5d461d60c8d9c762d1dd50886272521a17d508a1
Markdowne2ab460dcec0be6f27a4163dbf1fafd8f0428b8c1c0e53c9627b24b9ec613216
PDF
Publication page119f35d6b2486690d0b6e5b1fdd29d043968ef9dd7dafdc56abdae84d60fbc87
Manifestb54821420e7c1bb0e5ae47277e9b7e8beecd54616783e923278af7b88ef24dac

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
SignatureEDgeyvq/lLvfa1UBuZDYNCHu0Af0apTCG7QzF92JaWH/x3NzpOrTQrDFYerr2eRjCjoLpQw77HCkzZzYxvRHDw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:39:21.646144ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029647
observed 119f35d6b2486690d0b6e5b1fdd29d04...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:21.627343ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029647/manifest.json
observed b54821420e7c1bb0e5ae47277e9b7e8b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:21.611703ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029647/publication.md
observed e2ab460dcec0be6f27a4163dbf1fafd8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:21.596641ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029647/publication.txt
observed 630a4cefe029d59975e1bdbc5d461d60...
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.