OpenTechnical

OT-2026-000087817

Publication integrity record

Foam pad vacuum gripper, two zone face, per zone isolation, pump 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-2026-000087817) never changes.

Identity and time

Publication numberOT-2026-000087817 · never reused
Internal UUID01a0ae9b-1aa5-7e28-b44b-5d8451f044ed · 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-2026-000087817
StatusPUBLIC

Content hashes

Canonical text653ad863d055c2905715c77e702e3d8e54944558f36085520362388cbe899496
Markdownd7b9626de9c50157ff0e932ac2a7b7cd4f451315807466694c9b363bf5222141
PDF
Publication pagee202cc32d18016f73c947bc8a51c1626887a4933a66f8d0c2b3472a0878a5ce0
Manifestf116e73cb62e3e044638698f13c36abda20075845c880aa6343fc0f495610818

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
SignatureuvCrqRq7YID+OxSk/4oJVvnuRmGNkr34IHkGSghavtIxQIBQy6DzXLJoG0V6DxOzCECygiQBQWiGP1BSLfadCA==
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

2026-09-17T09:49:03.094658ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087817
observed e202cc32d18016f73c947bc8a51c1626...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:03.073680ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087817/manifest.json
observed f116e73cb62e3e044638698f13c36abd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:03.054489ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087817/publication.md
observed d7b9626de9c50157ff0e932ac2a7b7cd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:03.034216ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087817/publication.txt
observed 653ad863d055c2905715c77e702e3d8e...
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.