OpenTechnical

OT-2026-000070557

Publication integrity record

Four bellows cup vacuum gripper, four zone face, pump 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-2026-000070557) never changes.

Identity and time

Publication numberOT-2026-000070557 · never reused
Internal UUID01a0ae91-5460-7a9c-93c3-6f5e34999187 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:52:35.055348Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000070557
StatusPUBLIC

Content hashes

Canonical textd7da3cad54a4ca012c91bfca7db629d223a8f56ffb6b516cad7faf05dbee22aa
Markdowndfb52ff5cc24682b22456092506c9331ef34ac4b5e89d166d4bab585de16409e
PDF
Publication page7302c460b2358febfd7a44db72fb87f7863908d5dde5e9fd8e711d36c05d6b90
Manifest6531ed8867609b3e599c74320283e09db95023b3ede53da5401cabae6a2bc21f

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
Signatureiira1+XbyUwpRpy56Btlmi3kXaaKBzkMSudRHscHgyY4bifvBthSyMPfM3vSnvMYrv7j+Zhmm24nX5wC+1ZjAA==
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

2026-09-17T10:26:24.408378ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000070557
observed 7302c460b2358febfd7a44db72fb87f7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:26:24.389026ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000070557/manifest.json
observed 6531ed8867609b3e599c74320283e09d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:26:24.371996ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000070557/publication.md
observed dfb52ff5cc24682b22456092506c9331...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:26:24.354003ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000070557/publication.txt
observed d7da3cad54a4ca012c91bfca7db629d2...
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.