OpenTechnical

OT-2026-000087790

Publication integrity record

Two bellows cup vacuum gripper, two zone face, per zone isolation, plant vacuum fed, supply line pressure sensor, sustained 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-2026-000087790) never changes.

Identity and time

Publication numberOT-2026-000087790 · never reused
Internal UUID01a0ae9b-1aa4-7838-8462-6af2c5d1ad98 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:03:15.638297Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000087790
StatusPUBLIC

Content hashes

Canonical textb387829caf5641d45dab1f3077288743bf60f81cb9e60660172edde6b3de4df2
Markdownd6e672863971dc9176647c92d761c80b9da32cd073eb678cb6f839970c941860
PDF
Publication pageeaf2bb066caebed59758353db357460db49ff294edb85ce2f3481e765b1f01da
Manifestd8c7ea88807484d13c79bee6e05f2e728181956ca9591ad411bca80e9eea4440

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
SignatureeeFMOQo1tRcvSj7Gsnz+rWx+HcXwb30nvQ31QKH/boPAsjUq5BaHiBPlRAYs9KEZQD6M9Ynk/lvJOD8QFmZNCQ==
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

2026-09-17T09:48:56.419785ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087790
observed eaf2bb066caebed59758353db357460d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:48:56.403709ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087790/manifest.json
observed d8c7ea88807484d13c79bee6e05f2e72...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:48:56.385738ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087790/publication.md
observed d6e672863971dc9176647c92d761c80b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:48:56.368119ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087790/publication.txt
observed b387829caf5641d45dab1f3077288743...
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.