OpenTechnical

OT-2026-000064943

Publication integrity record

Foam pad vacuum gripper, four zone face, pump fed, pressure sensor per zone, 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-2026-000064943) never changes.

Identity and time

Publication numberOT-2026-000064943 · never reused
Internal UUID01a0ae8d-debd-7266-b583-49afbeae7243 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:48:48.495161Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000064943
StatusPUBLIC

Content hashes

Canonical text143275c872435973cf28f75649ef46860725c0231be7ad7df2df5464bb7faa7f
Markdown93c3fe07cb506bbbdc65c8d04dcdaaccba4d4836742fd9b9d7c7d808f47943a0
PDF
Publication pagecdce4e4fc1dfdd742b312d2eaa0fe65ba3ed8257902d43440f6abddb4cca0aaf
Manifeste85472e280835c5191e9b2641a87b3db20a8ad70d9ae6b7914e12a856f371f61

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
Signaturest4Xnquf/5zZ+y2m4N/bNTVmj6UtpuG1WeLu2IKE+V/ieVZfCZEEsSQRdSMFGwV0VTtMgUtC4l54t2HpwAfRDg==
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

2026-09-17T10:35:52.935287ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000064943
observed cdce4e4fc1dfdd742b312d2eaa0fe65b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:35:52.918203ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000064943/manifest.json
observed e85472e280835c5191e9b2641a87b3db...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:35:52.900411ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000064943/publication.md
observed 93c3fe07cb506bbbdc65c8d04dcdaacc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:35:52.884117ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000064943/publication.txt
observed 143275c872435973cf28f75649ef4686...
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.