OpenTechnical

OT-2026-000075766

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, pump fed, supply line pressure sensor, vented 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-2026-000075766) never changes.

Identity and time

Publication numberOT-2026-000075766 · never reused
Internal UUID01a0ae94-29fe-7a71-96eb-ce4135db8790 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:40.814795Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000075766
StatusPUBLIC

Content hashes

Canonical text1d7251fe291820b0e586a083529a5f26010a7ab988d7278631aa4d2491511c5e
Markdownd25ca67ee9ccbe59e3c7228cfbde9a71e4fcbf7b677be3841bf29d6a1bd0b48b
PDF
Publication page831c04f72e8d8b1c4b4725f651016c2f4ad3f9e73eb018e0ec878ef67f476577
Manifest5e6cb44a2c520098a145deec82ca0906ef2d69fc418a3000b1c173c1122401a7

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
SignatureskP/b8bsu2ws0SbFTe/YF5f++oo8Qi3lyr2JzMsbO/8wTdMwOB1uIkgXvST1UbEoOzx9wa6pZkCmLzrEocV2Dw==
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

2026-09-17T10:14:10.041885ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075766
observed 831c04f72e8d8b1c4b4725f651016c2f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:14:10.022371ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075766/manifest.json
observed 5e6cb44a2c520098a145deec82ca0906...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:14:10.002686ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075766/publication.md
observed d25ca67ee9ccbe59e3c7228cfbde9a71...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:14:09.984652ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075766/publication.txt
observed 1d7251fe291820b0e586a083529a5f26...
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.