OpenTechnical

OT-2026-000011852

Publication integrity record

Four finger electric gripper, stripped after 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-2026-000011852) never changes.

Identity and time

Publication numberOT-2026-000011852 · never reused
Internal UUID01a0ae6d-1941-7a8a-95c7-5b4fd39e7518 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:00.631271Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000011852
StatusPUBLIC

Content hashes

Canonical textcbb1634d6432d39bd5746879db51b7aafbba6c2f17b57164dd204dcf1fbab42d
Markdownda2ad1729f1390d67f333dfb0df646ff4fd1cef3c68f87ce828b219fffb07db6
PDF
Publication pagea7309083a7b423a2a160da4afc5d4db3b0427126d1da95c6332f6e0e35c2f96a
Manifest53d7807c6bcf60a2455e03f0a94ab95c7d1c5dba9f136f29dd11028f2cfb6df7

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
SignatureIuoJ0WV2u3pJuyy7xKegsep4DmaOr4yeh4xY3ffDf46NMp9V1xYaXpwrCoIfIkK1bBeWHa3WBNAVzbP2wdWWDw==
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

2026-09-17T12:12:35.664257ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011852
observed a7309083a7b423a2a160da4afc5d4db3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:35.644878ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011852/manifest.json
observed 53d7807c6bcf60a2455e03f0a94ab95c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:35.616413ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011852/publication.md
observed da2ad1729f1390d67f333dfb0df646ff...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:35.597751ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011852/publication.txt
observed cbb1634d6432d39bd5746879db51b7aa...
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.